Home / 732,103.74-1,009,781.28-445,642.20

Finding the Fourth Proportional to 732,103.74, 1,009,781.28 and 445,642.20

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Solution

The fourth proportional to 732,103.74, 1,009,781.28 and 445,642.20 is: 614,668.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    732,103.74 : 1,009,781.28 = 445,642.20 : x
  2. Step 2: Convert to fraction form
    732,103.74/1,009,781.28 = 445,642.20/x
  3. Step 3: Cross multiply
    732,103.74x = 1,009,781.28 × 445,642.20
  4. Step 4: Simplify right side
    732,103.74x = 450,001,151,138.02
  5. Step 5: Solve for x
    x = 450,001,151,138.02/732,103.74
  6. Step 6: Final answer
    x = 614,668.56

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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.