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Finding the Fourth Proportional to 570,719.71, 785,800.70 and 484,499.97

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Solution

The fourth proportional to 570,719.71, 785,800.70 and 484,499.97 is: 667,088.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,719.71 : 785,800.70 = 484,499.97 : x
  2. Step 2: Convert to fraction form
    570,719.71/785,800.70 = 484,499.97/x
  3. Step 3: Cross multiply
    570,719.71x = 785,800.70 × 484,499.97
  4. Step 4: Simplify right side
    570,719.71x = 380,720,415,575.98
  5. Step 5: Solve for x
    x = 380,720,415,575.98/570,719.71
  6. Step 6: Final answer
    x = 667,088.26

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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.