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Finding the Fourth Proportional to 573,721.65, 860,582.48 and 258,793.65

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Solution

The fourth proportional to 573,721.65, 860,582.48 and 258,793.65 is: 388,190.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,721.65 : 860,582.48 = 258,793.65 : x
  2. Step 2: Convert to fraction form
    573,721.65/860,582.48 = 258,793.65/x
  3. Step 3: Cross multiply
    573,721.65x = 860,582.48 × 258,793.65
  4. Step 4: Simplify right side
    573,721.65x = 222,713,279,831.28
  5. Step 5: Solve for x
    x = 222,713,279,831.28/573,721.65
  6. Step 6: Final answer
    x = 388,190.48

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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.