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Finding the Fourth Proportional to 587,751.85, 811,186.22 and 358,442.17

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Solution

The fourth proportional to 587,751.85, 811,186.22 and 358,442.17 is: 494,704.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,751.85 : 811,186.22 = 358,442.17 : x
  2. Step 2: Convert to fraction form
    587,751.85/811,186.22 = 358,442.17/x
  3. Step 3: Cross multiply
    587,751.85x = 811,186.22 × 358,442.17
  4. Step 4: Simplify right side
    587,751.85x = 290,763,348,970.90
  5. Step 5: Solve for x
    x = 290,763,348,970.90/587,751.85
  6. Step 6: Final answer
    x = 494,704.27

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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.