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Finding the Fourth Proportional to 530,355.54, 731,967.77 and 297,808.58

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Solution

The fourth proportional to 530,355.54, 731,967.77 and 297,808.58 is: 411,019.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,355.54 : 731,967.77 = 297,808.58 : x
  2. Step 2: Convert to fraction form
    530,355.54/731,967.77 = 297,808.58/x
  3. Step 3: Cross multiply
    530,355.54x = 731,967.77 × 297,808.58
  4. Step 4: Simplify right side
    530,355.54x = 217,986,281,433.72
  5. Step 5: Solve for x
    x = 217,986,281,433.72/530,355.54
  6. Step 6: Final answer
    x = 411,019.15

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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.