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Finding the Fourth Proportional to 260,353.68, 390,685.71 and 116,248.29

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Solution

The fourth proportional to 260,353.68, 390,685.71 and 116,248.29 is: 174,441.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,353.68 : 390,685.71 = 116,248.29 : x
  2. Step 2: Convert to fraction form
    260,353.68/390,685.71 = 116,248.29/x
  3. Step 3: Cross multiply
    260,353.68x = 390,685.71 × 116,248.29
  4. Step 4: Simplify right side
    260,353.68x = 45,416,545,714.94
  5. Step 5: Solve for x
    x = 45,416,545,714.94/260,353.68
  6. Step 6: Final answer
    x = 174,441.73

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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.