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Finding the Fourth Proportional to 260,657.30, 391,569.15 and 250,030.10

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Solution

The fourth proportional to 260,657.30, 391,569.15 and 250,030.10 is: 375,604.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,657.30 : 391,569.15 = 250,030.10 : x
  2. Step 2: Convert to fraction form
    260,657.30/391,569.15 = 250,030.10/x
  3. Step 3: Cross multiply
    260,657.30x = 391,569.15 × 250,030.10
  4. Step 4: Simplify right side
    260,657.30x = 97,904,073,731.42
  5. Step 5: Solve for x
    x = 97,904,073,731.42/260,657.30
  6. Step 6: Final answer
    x = 375,604.57

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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.