Home / 719,134.82-991,987.02-460,919.78

Finding the Fourth Proportional to 719,134.82, 991,987.02 and 460,919.78

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Solution

The fourth proportional to 719,134.82, 991,987.02 and 460,919.78 is: 635,800.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,134.82 : 991,987.02 = 460,919.78 : x
  2. Step 2: Convert to fraction form
    719,134.82/991,987.02 = 460,919.78/x
  3. Step 3: Cross multiply
    719,134.82x = 991,987.02 × 460,919.78
  4. Step 4: Simplify right side
    719,134.82x = 457,226,439,021.26
  5. Step 5: Solve for x
    x = 457,226,439,021.26/719,134.82
  6. Step 6: Final answer
    x = 635,800.72

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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.