Home / 690,805.10-1,036,207.65-410,177.90

Finding the Fourth Proportional to 690,805.10, 1,036,207.65 and 410,177.90

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Solution

The fourth proportional to 690,805.10, 1,036,207.65 and 410,177.90 is: 615,266.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,805.10 : 1,036,207.65 = 410,177.90 : x
  2. Step 2: Convert to fraction form
    690,805.10/1,036,207.65 = 410,177.90/x
  3. Step 3: Cross multiply
    690,805.10x = 1,036,207.65 × 410,177.90
  4. Step 4: Simplify right side
    690,805.10x = 425,029,477,840.94
  5. Step 5: Solve for x
    x = 425,029,477,840.94/690,805.10
  6. Step 6: Final answer
    x = 615,266.85

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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.