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Finding the Fourth Proportional to 407,772.76, 562,726.42 and 228,924.76

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Solution

The fourth proportional to 407,772.76, 562,726.42 and 228,924.76 is: 315,916.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,772.76 : 562,726.42 = 228,924.76 : x
  2. Step 2: Convert to fraction form
    407,772.76/562,726.42 = 228,924.76/x
  3. Step 3: Cross multiply
    407,772.76x = 562,726.42 × 228,924.76
  4. Step 4: Simplify right side
    407,772.76x = 128,822,010,644.16
  5. Step 5: Solve for x
    x = 128,822,010,644.16/407,772.76
  6. Step 6: Final answer
    x = 315,916.18

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Double scale
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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.