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Finding the Fourth Proportional to 717,700.04, 990,569.46 and 411,983.09

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Solution

The fourth proportional to 717,700.04, 990,569.46 and 411,983.09 is: 568,618.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,700.04 : 990,569.46 = 411,983.09 : x
  2. Step 2: Convert to fraction form
    717,700.04/990,569.46 = 411,983.09/x
  3. Step 3: Cross multiply
    717,700.04x = 990,569.46 × 411,983.09
  4. Step 4: Simplify right side
    717,700.04x = 408,097,862,037.58
  5. Step 5: Solve for x
    x = 408,097,862,037.58/717,700.04
  6. Step 6: Final answer
    x = 568,618.98

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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.