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Finding the Fourth Proportional to 410,021.80, 615,032.70 and 144,082.60

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Solution

The fourth proportional to 410,021.80, 615,032.70 and 144,082.60 is: 216,123.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,021.80 : 615,032.70 = 144,082.60 : x
  2. Step 2: Convert to fraction form
    410,021.80/615,032.70 = 144,082.60/x
  3. Step 3: Cross multiply
    410,021.80x = 615,032.70 × 144,082.60
  4. Step 4: Simplify right side
    410,021.80x = 88,615,510,501.02
  5. Step 5: Solve for x
    x = 88,615,510,501.02/410,021.80
  6. Step 6: Final answer
    x = 216,123.90

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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.