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Finding the Fourth Proportional to 460,061.40, 690,113.70 and 144,528.60

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Solution

The fourth proportional to 460,061.40, 690,113.70 and 144,528.60 is: 216,799.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,061.40 : 690,113.70 = 144,528.60 : x
  2. Step 2: Convert to fraction form
    460,061.40/690,113.70 = 144,528.60/x
  3. Step 3: Cross multiply
    460,061.40x = 690,113.70 × 144,528.60
  4. Step 4: Simplify right side
    460,061.40x = 99,741,166,901.82
  5. Step 5: Solve for x
    x = 99,741,166,901.82/460,061.40
  6. Step 6: Final answer
    x = 216,799.69

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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.