Home / 827,800.79-1,142,459.78-460,314.57

Finding the Fourth Proportional to 827,800.79, 1,142,459.78 and 460,314.57

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Solution

The fourth proportional to 827,800.79, 1,142,459.78 and 460,314.57 is: 635,286.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,800.79 : 1,142,459.78 = 460,314.57 : x
  2. Step 2: Convert to fraction form
    827,800.79/1,142,459.78 = 460,314.57/x
  3. Step 3: Cross multiply
    827,800.79x = 1,142,459.78 × 460,314.57
  4. Step 4: Simplify right side
    827,800.79x = 525,890,882,373.00
  5. Step 5: Solve for x
    x = 525,890,882,373.00/827,800.79
  6. Step 6: Final answer
    x = 635,286.76

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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.