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Finding the Fourth Proportional to 460,164.20, 690,269.70 and 144,624.20

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Solution

The fourth proportional to 460,164.20, 690,269.70 and 144,624.20 is: 216,943.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,164.20 : 690,269.70 = 144,624.20 : x
  2. Step 2: Convert to fraction form
    460,164.20/690,269.70 = 144,624.20/x
  3. Step 3: Cross multiply
    460,164.20x = 690,269.70 × 144,624.20
  4. Step 4: Simplify right side
    460,164.20x = 99,829,703,146.74
  5. Step 5: Solve for x
    x = 99,829,703,146.74/460,164.20
  6. Step 6: Final answer
    x = 216,943.65

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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.