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Finding the Fourth Proportional to 347,232.20, 520,070.70 and 207,264.20

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Solution

The fourth proportional to 347,232.20, 520,070.70 and 207,264.20 is: 310,432.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,232.20 : 520,070.70 = 207,264.20 : x
  2. Step 2: Convert to fraction form
    347,232.20/520,070.70 = 207,264.20/x
  3. Step 3: Cross multiply
    347,232.20x = 520,070.70 × 207,264.20
  4. Step 4: Simplify right side
    347,232.20x = 107,792,037,578.94
  5. Step 5: Solve for x
    x = 107,792,037,578.94/347,232.20
  6. Step 6: Final answer
    x = 310,432.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.