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Finding the Fourth Proportional to 717,401.13, 989,940.27 and 441,715.20

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Solution

The fourth proportional to 717,401.13, 989,940.27 and 441,715.20 is: 609,521.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,401.13 : 989,940.27 = 441,715.20 : x
  2. Step 2: Convert to fraction form
    717,401.13/989,940.27 = 441,715.20/x
  3. Step 3: Cross multiply
    717,401.13x = 989,940.27 × 441,715.20
  4. Step 4: Simplify right side
    717,401.13x = 437,271,664,351.10
  5. Step 5: Solve for x
    x = 437,271,664,351.10/717,401.13
  6. Step 6: Final answer
    x = 609,521.85

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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.