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Finding the Fourth Proportional to 924,388.20, 1,388,915.10 and 587,590.20

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Solution

The fourth proportional to 924,388.20, 1,388,915.10 and 587,590.20 is: 882,868.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    924,388.20 : 1,388,915.10 = 587,590.20 : x
  2. Step 2: Convert to fraction form
    924,388.20/1,388,915.10 = 587,590.20/x
  3. Step 3: Cross multiply
    924,388.20x = 1,388,915.10 × 587,590.20
  4. Step 4: Simplify right side
    924,388.20x = 816,112,901,392.02
  5. Step 5: Solve for x
    x = 816,112,901,392.02/924,388.20
  6. Step 6: Final answer
    x = 882,868.15

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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.