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Finding the Fourth Proportional to 571,262.90, 788,343.44 and 316,614.29

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Solution

The fourth proportional to 571,262.90, 788,343.44 and 316,614.29 is: 436,928.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,262.90 : 788,343.44 = 316,614.29 : x
  2. Step 2: Convert to fraction form
    571,262.90/788,343.44 = 316,614.29/x
  3. Step 3: Cross multiply
    571,262.90x = 788,343.44 × 316,614.29
  4. Step 4: Simplify right side
    571,262.90x = 249,600,793,006.97
  5. Step 5: Solve for x
    x = 249,600,793,006.97/571,262.90
  6. Step 6: Final answer
    x = 436,928.07

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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.