Home / 862,686.80-1,190,512.53-500,325.53

Finding the Fourth Proportional to 862,686.80, 1,190,512.53 and 500,325.53

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Solution

The fourth proportional to 862,686.80, 1,190,512.53 and 500,325.53 is: 690,451.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,686.80 : 1,190,512.53 = 500,325.53 : x
  2. Step 2: Convert to fraction form
    862,686.80/1,190,512.53 = 500,325.53/x
  3. Step 3: Cross multiply
    862,686.80x = 1,190,512.53 × 500,325.53
  4. Step 4: Simplify right side
    862,686.80x = 595,643,812,543.89
  5. Step 5: Solve for x
    x = 595,643,812,543.89/862,686.80
  6. Step 6: Final answer
    x = 690,451.98

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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.