Home / 830,927.70-1,247,773.95-457,218.90

Finding the Fourth Proportional to 830,927.70, 1,247,773.95 and 457,218.90

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Solution

The fourth proportional to 830,927.70, 1,247,773.95 and 457,218.90 is: 686,589.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,927.70 : 1,247,773.95 = 457,218.90 : x
  2. Step 2: Convert to fraction form
    830,927.70/1,247,773.95 = 457,218.90/x
  3. Step 3: Cross multiply
    830,927.70x = 1,247,773.95 × 457,218.90
  4. Step 4: Simplify right side
    830,927.70x = 570,505,832,867.66
  5. Step 5: Solve for x
    x = 570,505,832,867.66/830,927.70
  6. Step 6: Final answer
    x = 686,589.02

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1.5x scale

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.