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Finding the Fourth Proportional to 460,040.60, 690,060.90 and 144,529.40

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Solution

The fourth proportional to 460,040.60, 690,060.90 and 144,529.40 is: 216,794.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,040.60 : 690,060.90 = 144,529.40 : x
  2. Step 2: Convert to fraction form
    460,040.60/690,060.90 = 144,529.40/x
  3. Step 3: Cross multiply
    460,040.60x = 690,060.90 × 144,529.40
  4. Step 4: Simplify right side
    460,040.60x = 99,734,087,840.46
  5. Step 5: Solve for x
    x = 99,734,087,840.46/460,040.60
  6. Step 6: Final answer
    x = 216,794.10

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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.