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Finding the Fourth Proportional to 311,113.80, 466,152.30 and 292,451.40

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Solution

The fourth proportional to 311,113.80, 466,152.30 and 292,451.40 is: 438,189.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,113.80 : 466,152.30 = 292,451.40 : x
  2. Step 2: Convert to fraction form
    311,113.80/466,152.30 = 292,451.40/x
  3. Step 3: Cross multiply
    311,113.80x = 466,152.30 × 292,451.40
  4. Step 4: Simplify right side
    311,113.80x = 136,326,892,748.22
  5. Step 5: Solve for x
    x = 136,326,892,748.22/311,113.80
  6. Step 6: Final answer
    x = 438,189.80

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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.