Home / 717,734.77-990,496.44-411,867.16

Finding the Fourth Proportional to 717,734.77, 990,496.44 and 411,867.16

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Solution

The fourth proportional to 717,734.77, 990,496.44 and 411,867.16 is: 568,389.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,734.77 : 990,496.44 = 411,867.16 : x
  2. Step 2: Convert to fraction form
    717,734.77/990,496.44 = 411,867.16/x
  3. Step 3: Cross multiply
    717,734.77x = 990,496.44 × 411,867.16
  4. Step 4: Simplify right side
    717,734.77x = 407,952,955,732.91
  5. Step 5: Solve for x
    x = 407,952,955,732.91/717,734.77
  6. Step 6: Final answer
    x = 568,389.57

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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.