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Finding the Fourth Proportional to 592,805.10, 889,207.65 and 412,401.90

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Solution

The fourth proportional to 592,805.10, 889,207.65 and 412,401.90 is: 618,602.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    592,805.10 : 889,207.65 = 412,401.90 : x
  2. Step 2: Convert to fraction form
    592,805.10/889,207.65 = 412,401.90/x
  3. Step 3: Cross multiply
    592,805.10x = 889,207.65 × 412,401.90
  4. Step 4: Simplify right side
    592,805.10x = 366,710,924,354.54
  5. Step 5: Solve for x
    x = 366,710,924,354.54/592,805.10
  6. Step 6: Final answer
    x = 618,602.85

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Double scale
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Similar ratio
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1.5x scale

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.