Home / 717,976.72-990,854.68-412,152.16

Finding the Fourth Proportional to 717,976.72, 990,854.68 and 412,152.16

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Solution

The fourth proportional to 717,976.72, 990,854.68 and 412,152.16 is: 568,796.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,976.72 : 990,854.68 = 412,152.16 : x
  2. Step 2: Convert to fraction form
    717,976.72/990,854.68 = 412,152.16/x
  3. Step 3: Cross multiply
    717,976.72x = 990,854.68 × 412,152.16
  4. Step 4: Simplify right side
    717,976.72x = 408,382,896,608.11
  5. Step 5: Solve for x
    x = 408,382,896,608.11/717,976.72
  6. Step 6: Final answer
    x = 568,796.85

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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.