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Finding the Fourth Proportional to 616,128.20, 924,192.30 and 543,811.40

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Solution

The fourth proportional to 616,128.20, 924,192.30 and 543,811.40 is: 815,717.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,128.20 : 924,192.30 = 543,811.40 : x
  2. Step 2: Convert to fraction form
    616,128.20/924,192.30 = 543,811.40/x
  3. Step 3: Cross multiply
    616,128.20x = 924,192.30 × 543,811.40
  4. Step 4: Simplify right side
    616,128.20x = 502,586,308,532.22
  5. Step 5: Solve for x
    x = 502,586,308,532.22/616,128.20
  6. Step 6: Final answer
    x = 815,717.10

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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.