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Finding the Fourth Proportional to 257,600.16, 386,492.22 and 156,603.69

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Solution

The fourth proportional to 257,600.16, 386,492.22 and 156,603.69 is: 234,961.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,600.16 : 386,492.22 = 156,603.69 : x
  2. Step 2: Convert to fraction form
    257,600.16/386,492.22 = 156,603.69/x
  3. Step 3: Cross multiply
    257,600.16x = 386,492.22 × 156,603.69
  4. Step 4: Simplify right side
    257,600.16x = 60,526,107,808.29
  5. Step 5: Solve for x
    x = 60,526,107,808.29/257,600.16
  6. Step 6: Final answer
    x = 234,961.45

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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.