Home / 861,057.59-1,188,423.98-570,156.05

Finding the Fourth Proportional to 861,057.59, 1,188,423.98 and 570,156.05

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Solution

The fourth proportional to 861,057.59, 1,188,423.98 and 570,156.05 is: 786,924.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,057.59 : 1,188,423.98 = 570,156.05 : x
  2. Step 2: Convert to fraction form
    861,057.59/1,188,423.98 = 570,156.05/x
  3. Step 3: Cross multiply
    861,057.59x = 1,188,423.98 × 570,156.05
  4. Step 4: Simplify right side
    861,057.59x = 677,587,122,282.36
  5. Step 5: Solve for x
    x = 677,587,122,282.36/861,057.59
  6. Step 6: Final answer
    x = 786,924.28

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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.