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Finding the Fourth Proportional to 416,802.52, 575,188.05 and 225,815.91

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Solution

The fourth proportional to 416,802.52, 575,188.05 and 225,815.91 is: 311,626.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,802.52 : 575,188.05 = 225,815.91 : x
  2. Step 2: Convert to fraction form
    416,802.52/575,188.05 = 225,815.91/x
  3. Step 3: Cross multiply
    416,802.52x = 575,188.05 × 225,815.91
  4. Step 4: Simplify right side
    416,802.52x = 129,886,612,931.88
  5. Step 5: Solve for x
    x = 129,886,612,931.88/416,802.52
  6. Step 6: Final answer
    x = 311,626.27

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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.