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Finding the Fourth Proportional to 616,289.40, 924,434.10 and 547,860.60

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Solution

The fourth proportional to 616,289.40, 924,434.10 and 547,860.60 is: 821,790.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,289.40 : 924,434.10 = 547,860.60 : x
  2. Step 2: Convert to fraction form
    616,289.40/924,434.10 = 547,860.60/x
  3. Step 3: Cross multiply
    616,289.40x = 924,434.10 × 547,860.60
  4. Step 4: Simplify right side
    616,289.40x = 506,461,020,686.46
  5. Step 5: Solve for x
    x = 506,461,020,686.46/616,289.40
  6. Step 6: Final answer
    x = 821,790.90

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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.