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Finding the Fourth Proportional to 587,805.68, 811,188.60 and 358,376.24

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Solution

The fourth proportional to 587,805.68, 811,188.60 and 358,376.24 is: 494,569.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,805.68 : 811,188.60 = 358,376.24 : x
  2. Step 2: Convert to fraction form
    587,805.68/811,188.60 = 358,376.24/x
  3. Step 3: Cross multiply
    587,805.68x = 811,188.60 × 358,376.24
  4. Step 4: Simplify right side
    587,805.68x = 290,710,720,398.86
  5. Step 5: Solve for x
    x = 290,710,720,398.86/587,805.68
  6. Step 6: Final answer
    x = 494,569.43

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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.