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Finding the Fourth Proportional to 571,269.52, 788,352.58 and 316,620.91

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Solution

The fourth proportional to 571,269.52, 788,352.58 and 316,620.91 is: 436,937.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,269.52 : 788,352.58 = 316,620.91 : x
  2. Step 2: Convert to fraction form
    571,269.52/788,352.58 = 316,620.91/x
  3. Step 3: Cross multiply
    571,269.52x = 788,352.58 × 316,620.91
  4. Step 4: Simplify right side
    571,269.52x = 249,608,911,280.45
  5. Step 5: Solve for x
    x = 249,608,911,280.45/571,269.52
  6. Step 6: Final answer
    x = 436,937.21

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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.