Home / 830,396.01-1,146,229.47-516,313.65

Finding the Fourth Proportional to 830,396.01, 1,146,229.47 and 516,313.65

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Solution

The fourth proportional to 830,396.01, 1,146,229.47 and 516,313.65 is: 712,688.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,396.01 : 1,146,229.47 = 516,313.65 : x
  2. Step 2: Convert to fraction form
    830,396.01/1,146,229.47 = 516,313.65/x
  3. Step 3: Cross multiply
    830,396.01x = 1,146,229.47 × 516,313.65
  4. Step 4: Simplify right side
    830,396.01x = 591,813,921,393.27
  5. Step 5: Solve for x
    x = 591,813,921,393.27/830,396.01
  6. Step 6: Final answer
    x = 712,688.78

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Double scale
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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.