Home / 679,899.30-938,278.73-373,983.56

Finding the Fourth Proportional to 679,899.30, 938,278.73 and 373,983.56

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Solution

The fourth proportional to 679,899.30, 938,278.73 and 373,983.56 is: 516,107.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,899.30 : 938,278.73 = 373,983.56 : x
  2. Step 2: Convert to fraction form
    679,899.30/938,278.73 = 373,983.56/x
  3. Step 3: Cross multiply
    679,899.30x = 938,278.73 × 373,983.56
  4. Step 4: Simplify right side
    679,899.30x = 350,900,820,423.05
  5. Step 5: Solve for x
    x = 350,900,820,423.05/679,899.30
  6. Step 6: Final answer
    x = 516,107.05

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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.