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Finding the Fourth Proportional to 582,726.65, 874,089.97 and 209,012.09

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Solution

The fourth proportional to 582,726.65, 874,089.97 and 209,012.09 is: 313,518.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    582,726.65 : 874,089.97 = 209,012.09 : x
  2. Step 2: Convert to fraction form
    582,726.65/874,089.97 = 209,012.09/x
  3. Step 3: Cross multiply
    582,726.65x = 874,089.97 × 209,012.09
  4. Step 4: Simplify right side
    582,726.65x = 182,695,366,584.76
  5. Step 5: Solve for x
    x = 182,695,366,584.76/582,726.65
  6. Step 6: Final answer
    x = 313,518.13

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.