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Finding the Fourth Proportional to 400,044.94, 551,801.90 and 256,577.74

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Solution

The fourth proportional to 400,044.94, 551,801.90 and 256,577.74 is: 353,910.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,044.94 : 551,801.90 = 256,577.74 : x
  2. Step 2: Convert to fraction form
    400,044.94/551,801.90 = 256,577.74/x
  3. Step 3: Cross multiply
    400,044.94x = 551,801.90 × 256,577.74
  4. Step 4: Simplify right side
    400,044.94x = 141,580,083,146.82
  5. Step 5: Solve for x
    x = 141,580,083,146.82/400,044.94
  6. Step 6: Final answer
    x = 353,910.45

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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.