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Finding the Fourth Proportional to 460,147.32, 690,290.64 and 144,574.56

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Solution

The fourth proportional to 460,147.32, 690,290.64 and 144,574.56 is: 216,883.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,147.32 : 690,290.64 = 144,574.56 : x
  2. Step 2: Convert to fraction form
    460,147.32/690,290.64 = 144,574.56/x
  3. Step 3: Cross multiply
    460,147.32x = 690,290.64 × 144,574.56
  4. Step 4: Simplify right side
    460,147.32x = 99,798,465,550.12
  5. Step 5: Solve for x
    x = 99,798,465,550.12/460,147.32
  6. Step 6: Final answer
    x = 216,883.73

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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.