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Finding the Fourth Proportional to 587,753.86, 811,188.98 and 358,444.18

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Solution

The fourth proportional to 587,753.86, 811,188.98 and 358,444.18 is: 494,707.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,753.86 : 811,188.98 = 358,444.18 : x
  2. Step 2: Convert to fraction form
    587,753.86/811,188.98 = 358,444.18/x
  3. Step 3: Cross multiply
    587,753.86x = 811,188.98 × 358,444.18
  4. Step 4: Simplify right side
    587,753.86x = 290,765,968,761.14
  5. Step 5: Solve for x
    x = 290,765,968,761.14/587,753.86
  6. Step 6: Final answer
    x = 494,707.03

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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.