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Finding the Fourth Proportional to 581,250.80, 872,567.40 and 328,732.40

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Solution

The fourth proportional to 581,250.80, 872,567.40 and 328,732.40 is: 493,489.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,250.80 : 872,567.40 = 328,732.40 : x
  2. Step 2: Convert to fraction form
    581,250.80/872,567.40 = 328,732.40/x
  3. Step 3: Cross multiply
    581,250.80x = 872,567.40 × 328,732.40
  4. Step 4: Simplify right side
    581,250.80x = 286,841,175,563.76
  5. Step 5: Solve for x
    x = 286,841,175,563.76/581,250.80
  6. Step 6: Final answer
    x = 493,489.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.