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Finding the Fourth Proportional to 530,488.96, 732,405.52 and 369,285.28

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Solution

The fourth proportional to 530,488.96, 732,405.52 and 369,285.28 is: 509,843.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,488.96 : 732,405.52 = 369,285.28 : x
  2. Step 2: Convert to fraction form
    530,488.96/732,405.52 = 369,285.28/x
  3. Step 3: Cross multiply
    530,488.96x = 732,405.52 × 369,285.28
  4. Step 4: Simplify right side
    530,488.96x = 270,466,577,526.75
  5. Step 5: Solve for x
    x = 270,466,577,526.75/530,488.96
  6. Step 6: Final answer
    x = 509,843.93

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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.