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Finding the Fourth Proportional to 584,208.10, 876,312.15 and 331,390.90

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Solution

The fourth proportional to 584,208.10, 876,312.15 and 331,390.90 is: 497,086.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,208.10 : 876,312.15 = 331,390.90 : x
  2. Step 2: Convert to fraction form
    584,208.10/876,312.15 = 331,390.90/x
  3. Step 3: Cross multiply
    584,208.10x = 876,312.15 × 331,390.90
  4. Step 4: Simplify right side
    584,208.10x = 290,401,872,069.44
  5. Step 5: Solve for x
    x = 290,401,872,069.44/584,208.10
  6. Step 6: Final answer
    x = 497,086.35

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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.