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Finding the Fourth Proportional to 567,428.02, 783,053.13 and 312,773.74

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Solution

The fourth proportional to 567,428.02, 783,053.13 and 312,773.74 is: 431,629.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,428.02 : 783,053.13 = 312,773.74 : x
  2. Step 2: Convert to fraction form
    567,428.02/783,053.13 = 312,773.74/x
  3. Step 3: Cross multiply
    567,428.02x = 783,053.13 × 312,773.74
  4. Step 4: Simplify right side
    567,428.02x = 244,918,456,088.81
  5. Step 5: Solve for x
    x = 244,918,456,088.81/567,428.02
  6. Step 6: Final answer
    x = 431,629.12

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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.