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Finding the Fourth Proportional to 349,345.60, 523,672.80 and 171,707.20

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Solution

The fourth proportional to 349,345.60, 523,672.80 and 171,707.20 is: 257,390.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,345.60 : 523,672.80 = 171,707.20 : x
  2. Step 2: Convert to fraction form
    349,345.60/523,672.80 = 171,707.20/x
  3. Step 3: Cross multiply
    349,345.60x = 523,672.80 × 171,707.20
  4. Step 4: Simplify right side
    349,345.60x = 89,918,390,204.16
  5. Step 5: Solve for x
    x = 89,918,390,204.16/349,345.60
  6. Step 6: Final answer
    x = 257,390.93

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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.