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Finding the Fourth Proportional to 924,015, 1,386,575.46 and 398,703

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Solution

The fourth proportional to 924,015, 1,386,575.46 and 398,703 is: 598,293.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    924,015 : 1,386,575.46 = 398,703 : x
  2. Step 2: Convert to fraction form
    924,015/1,386,575.46 = 398,703/x
  3. Step 3: Cross multiply
    924,015x = 1,386,575.46 × 398,703
  4. Step 4: Simplify right side
    924,015x = 552,831,795,628.38
  5. Step 5: Solve for x
    x = 552,831,795,628.38/924,015
  6. Step 6: Final answer
    x = 598,293.10

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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.