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Finding the Fourth Proportional to 530,540.62, 795,540.56 and 260,686.69

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Solution

The fourth proportional to 530,540.62, 795,540.56 and 260,686.69 is: 390,897.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,540.62 : 795,540.56 = 260,686.69 : x
  2. Step 2: Convert to fraction form
    530,540.62/795,540.56 = 260,686.69/x
  3. Step 3: Cross multiply
    530,540.62x = 795,540.56 × 260,686.69
  4. Step 4: Simplify right side
    530,540.62x = 207,386,832,054.86
  5. Step 5: Solve for x
    x = 207,386,832,054.86/530,540.62
  6. Step 6: Final answer
    x = 390,897.18

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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.