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Finding the Fourth Proportional to 588,870.75, 812,641.68 and 320,598.75

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Solution

The fourth proportional to 588,870.75, 812,641.68 and 320,598.75 is: 442,426.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    588,870.75 : 812,641.68 = 320,598.75 : x
  2. Step 2: Convert to fraction form
    588,870.75/812,641.68 = 320,598.75/x
  3. Step 3: Cross multiply
    588,870.75x = 812,641.68 × 320,598.75
  4. Step 4: Simplify right side
    588,870.75x = 260,531,906,805.90
  5. Step 5: Solve for x
    x = 260,531,906,805.90/588,870.75
  6. Step 6: Final answer
    x = 442,426.30

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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.