Home / 838,460.16-1,157,036.40-456,485.76

Finding the Fourth Proportional to 838,460.16, 1,157,036.40 and 456,485.76

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Solution

The fourth proportional to 838,460.16, 1,157,036.40 and 456,485.76 is: 629,929.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,460.16 : 1,157,036.40 = 456,485.76 : x
  2. Step 2: Convert to fraction form
    838,460.16/1,157,036.40 = 456,485.76/x
  3. Step 3: Cross multiply
    838,460.16x = 1,157,036.40 × 456,485.76
  4. Step 4: Simplify right side
    838,460.16x = 528,170,640,401.66
  5. Step 5: Solve for x
    x = 528,170,640,401.66/838,460.16
  6. Step 6: Final answer
    x = 629,929.32

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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.