Home / 898,069.80-1,239,549.18-516,318.36

Finding the Fourth Proportional to 898,069.80, 1,239,549.18 and 516,318.36

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Solution

The fourth proportional to 898,069.80, 1,239,549.18 and 516,318.36 is: 712,641.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,069.80 : 1,239,549.18 = 516,318.36 : x
  2. Step 2: Convert to fraction form
    898,069.80/1,239,549.18 = 516,318.36/x
  3. Step 3: Cross multiply
    898,069.80x = 1,239,549.18 × 516,318.36
  4. Step 4: Simplify right side
    898,069.80x = 640,001,999,756.95
  5. Step 5: Solve for x
    x = 640,001,999,756.95/898,069.80
  6. Step 6: Final answer
    x = 712,641.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.