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Finding the Fourth Proportional to 586,590.24, 809,494.50 and 318,318.24

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Solution

The fourth proportional to 586,590.24, 809,494.50 and 318,318.24 is: 439,279.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,590.24 : 809,494.50 = 318,318.24 : x
  2. Step 2: Convert to fraction form
    586,590.24/809,494.50 = 318,318.24/x
  3. Step 3: Cross multiply
    586,590.24x = 809,494.50 × 318,318.24
  4. Step 4: Simplify right side
    586,590.24x = 257,676,864,529.68
  5. Step 5: Solve for x
    x = 257,676,864,529.68/586,590.24
  6. Step 6: Final answer
    x = 439,279.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.