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Finding the Fourth Proportional to 518,477.30, 777,715.95 and 163,600.10

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Solution

The fourth proportional to 518,477.30, 777,715.95 and 163,600.10 is: 245,400.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,477.30 : 777,715.95 = 163,600.10 : x
  2. Step 2: Convert to fraction form
    518,477.30/777,715.95 = 163,600.10/x
  3. Step 3: Cross multiply
    518,477.30x = 777,715.95 × 163,600.10
  4. Step 4: Simplify right side
    518,477.30x = 127,234,407,191.60
  5. Step 5: Solve for x
    x = 127,234,407,191.60/518,477.30
  6. Step 6: Final answer
    x = 245,400.15

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Similar ratio
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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.