Home / 1,210,298.84-1,670,224.76-666,485.20

Finding the Fourth Proportional to 1,210,298.84, 1,670,224.76 and 666,485.20

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Solution

The fourth proportional to 1,210,298.84, 1,670,224.76 and 666,485.20 is: 919,756.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,298.84 : 1,670,224.76 = 666,485.20 : x
  2. Step 2: Convert to fraction form
    1,210,298.84/1,670,224.76 = 666,485.20/x
  3. Step 3: Cross multiply
    1,210,298.84x = 1,670,224.76 × 666,485.20
  4. Step 4: Simplify right side
    1,210,298.84x = 1,113,180,083,213.55
  5. Step 5: Solve for x
    x = 1,113,180,083,213.55/1,210,298.84
  6. Step 6: Final answer
    x = 919,756.38

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Double scale
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1.5x scale

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.