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Finding the Fourth Proportional to 529,432.40, 794,071.80 and 155,416.40

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Solution

The fourth proportional to 529,432.40, 794,071.80 and 155,416.40 is: 233,102.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,432.40 : 794,071.80 = 155,416.40 : x
  2. Step 2: Convert to fraction form
    529,432.40/794,071.80 = 155,416.40/x
  3. Step 3: Cross multiply
    529,432.40x = 794,071.80 × 155,416.40
  4. Step 4: Simplify right side
    529,432.40x = 123,411,780,497.52
  5. Step 5: Solve for x
    x = 123,411,780,497.52/529,432.40
  6. Step 6: Final answer
    x = 233,102.06

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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.