Home / 861,943.55-1,189,482.04-499,577.60

Finding the Fourth Proportional to 861,943.55, 1,189,482.04 and 499,577.60

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Solution

The fourth proportional to 861,943.55, 1,189,482.04 and 499,577.60 is: 689,417.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,943.55 : 1,189,482.04 = 499,577.60 : x
  2. Step 2: Convert to fraction form
    861,943.55/1,189,482.04 = 499,577.60/x
  3. Step 3: Cross multiply
    861,943.55x = 1,189,482.04 × 499,577.60
  4. Step 4: Simplify right side
    861,943.55x = 594,238,575,589.95
  5. Step 5: Solve for x
    x = 594,238,575,589.95/861,943.55
  6. Step 6: Final answer
    x = 689,417.05

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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.