Home / 638,608,925,544.04-881,220,033,485.22-381,640,663,809.64

Finding the Fourth Proportional to 638,608,925,544.04, 881,220,033,485.22 and 381,640,663,809.64

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Solution

The fourth proportional to 638,608,925,544.04, 881,220,033,485.22 and 381,640,663,809.64 is: 526,628,089,726.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,608,925,544.04 : 881,220,033,485.22 = 381,640,663,809.64 : x
  2. Step 2: Convert to fraction form
    638,608,925,544.04/881,220,033,485.22 = 381,640,663,809.64/x
  3. Step 3: Cross multiply
    638,608,925,544.04x = 881,220,033,485.22 × 381,640,663,809.64
  4. Step 4: Simplify right side
    638,608,925,544.04x = 336,309,398,541,652,581,154,816
  5. Step 5: Solve for x
    x = 336,309,398,541,652,581,154,816/638,608,925,544.04
  6. Step 6: Final answer
    x = 526,628,089,726.66

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.