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Finding the Fourth Proportional to 717,336.52, 989,886.49 and 411,397.09

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Solution

The fourth proportional to 717,336.52, 989,886.49 and 411,397.09 is: 567,706.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,336.52 : 989,886.49 = 411,397.09 : x
  2. Step 2: Convert to fraction form
    717,336.52/989,886.49 = 411,397.09/x
  3. Step 3: Cross multiply
    717,336.52x = 989,886.49 × 411,397.09
  4. Step 4: Simplify right side
    717,336.52x = 407,236,421,416.31
  5. Step 5: Solve for x
    x = 407,236,421,416.31/717,336.52
  6. Step 6: Final answer
    x = 567,706.24

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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.