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Finding the Fourth Proportional to 616,223.80, 924,335.70 and 404,716.60

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Solution

The fourth proportional to 616,223.80, 924,335.70 and 404,716.60 is: 607,074.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,223.80 : 924,335.70 = 404,716.60 : x
  2. Step 2: Convert to fraction form
    616,223.80/924,335.70 = 404,716.60/x
  3. Step 3: Cross multiply
    616,223.80x = 924,335.70 × 404,716.60
  4. Step 4: Simplify right side
    616,223.80x = 374,094,001,762.62
  5. Step 5: Solve for x
    x = 374,094,001,762.62/616,223.80
  6. Step 6: Final answer
    x = 607,074.90

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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.