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Finding the Fourth Proportional to 584,211.40, 876,705.90 and 331,491.40

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Solution

The fourth proportional to 584,211.40, 876,705.90 and 331,491.40 is: 497,457.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,211.40 : 876,705.90 = 331,491.40 : x
  2. Step 2: Convert to fraction form
    584,211.40/876,705.90 = 331,491.40/x
  3. Step 3: Cross multiply
    584,211.40x = 876,705.90 × 331,491.40
  4. Step 4: Simplify right side
    584,211.40x = 290,620,466,179.26
  5. Step 5: Solve for x
    x = 290,620,466,179.26/584,211.40
  6. Step 6: Final answer
    x = 497,457.71

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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.