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Finding the Fourth Proportional to 653,712.30, 980,541.66 and 180,385.56

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Solution

The fourth proportional to 653,712.30, 980,541.66 and 180,385.56 is: 270,570.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,712.30 : 980,541.66 = 180,385.56 : x
  2. Step 2: Convert to fraction form
    653,712.30/980,541.66 = 180,385.56/x
  3. Step 3: Cross multiply
    653,712.30x = 980,541.66 × 180,385.56
  4. Step 4: Simplify right side
    653,712.30x = 176,875,556,442.43
  5. Step 5: Solve for x
    x = 176,875,556,442.43/653,712.30
  6. Step 6: Final answer
    x = 270,570.95

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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.