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Finding the Fourth Proportional to 530,173.20, 793,510.20 and 411,200.40

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Solution

The fourth proportional to 530,173.20, 793,510.20 and 411,200.40 is: 615,443.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,173.20 : 793,510.20 = 411,200.40 : x
  2. Step 2: Convert to fraction form
    530,173.20/793,510.20 = 411,200.40/x
  3. Step 3: Cross multiply
    530,173.20x = 793,510.20 × 411,200.40
  4. Step 4: Simplify right side
    530,173.20x = 326,291,711,644.08
  5. Step 5: Solve for x
    x = 326,291,711,644.08/530,173.20
  6. Step 6: Final answer
    x = 615,443.62

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