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Finding the Fourth Proportional to 563,062.92, 777,036.96 and 308,397.71

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Solution

The fourth proportional to 563,062.92, 777,036.96 and 308,397.71 is: 425,594.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,062.92 : 777,036.96 = 308,397.71 : x
  2. Step 2: Convert to fraction form
    563,062.92/777,036.96 = 308,397.71/x
  3. Step 3: Cross multiply
    563,062.92x = 777,036.96 × 308,397.71
  4. Step 4: Simplify right side
    563,062.92x = 239,636,415,164.18
  5. Step 5: Solve for x
    x = 239,636,415,164.18/563,062.92
  6. Step 6: Final answer
    x = 425,594.38

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Similar ratio
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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.