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Finding the Fourth Proportional to 637,711.85, 880,024.30 and 347,316.93

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Solution

The fourth proportional to 637,711.85, 880,024.30 and 347,316.93 is: 479,287.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,711.85 : 880,024.30 = 347,316.93 : x
  2. Step 2: Convert to fraction form
    637,711.85/880,024.30 = 347,316.93/x
  3. Step 3: Cross multiply
    637,711.85x = 880,024.30 × 347,316.93
  4. Step 4: Simplify right side
    637,711.85x = 305,647,337,333.11
  5. Step 5: Solve for x
    x = 305,647,337,333.11/637,711.85
  6. Step 6: Final answer
    x = 479,287.53

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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.