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Finding the Fourth Proportional to 383,545.59, 575,458.65 and 178,478.04

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Solution

The fourth proportional to 383,545.59, 575,458.65 and 178,478.04 is: 267,782.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,545.59 : 575,458.65 = 178,478.04 : x
  2. Step 2: Convert to fraction form
    383,545.59/575,458.65 = 178,478.04/x
  3. Step 3: Cross multiply
    383,545.59x = 575,458.65 × 178,478.04
  4. Step 4: Simplify right side
    383,545.59x = 102,706,731,953.05
  5. Step 5: Solve for x
    x = 102,706,731,953.05/383,545.59
  6. Step 6: Final answer
    x = 267,782.33

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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.