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Finding the Fourth Proportional to 616,072.60, 924,108.90 and 548,421.40

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Solution

The fourth proportional to 616,072.60, 924,108.90 and 548,421.40 is: 822,632.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,072.60 : 924,108.90 = 548,421.40 : x
  2. Step 2: Convert to fraction form
    616,072.60/924,108.90 = 548,421.40/x
  3. Step 3: Cross multiply
    616,072.60x = 924,108.90 × 548,421.40
  4. Step 4: Simplify right side
    616,072.60x = 506,801,096,690.46
  5. Step 5: Solve for x
    x = 506,801,096,690.46/616,072.60
  6. Step 6: Final answer
    x = 822,632.10

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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.