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Finding the Fourth Proportional to 717,733.77, 990,495.06 and 411,866.16

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Solution

The fourth proportional to 717,733.77, 990,495.06 and 411,866.16 is: 568,388.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,733.77 : 990,495.06 = 411,866.16 : x
  2. Step 2: Convert to fraction form
    717,733.77/990,495.06 = 411,866.16/x
  3. Step 3: Cross multiply
    717,733.77x = 990,495.06 × 411,866.16
  4. Step 4: Simplify right side
    717,733.77x = 407,951,396,861.17
  5. Step 5: Solve for x
    x = 407,951,396,861.17/717,733.77
  6. Step 6: Final answer
    x = 568,388.19

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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.