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Finding the Fourth Proportional to 341,429.10, 512,143.65 and 235,140.90

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Solution

The fourth proportional to 341,429.10, 512,143.65 and 235,140.90 is: 352,711.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,429.10 : 512,143.65 = 235,140.90 : x
  2. Step 2: Convert to fraction form
    341,429.10/512,143.65 = 235,140.90/x
  3. Step 3: Cross multiply
    341,429.10x = 512,143.65 × 235,140.90
  4. Step 4: Simplify right side
    341,429.10x = 120,425,918,790.29
  5. Step 5: Solve for x
    x = 120,425,918,790.29/341,429.10
  6. Step 6: Final answer
    x = 352,711.35

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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.