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Finding the Fourth Proportional to 283,104.01, 390,680.25 and 154,046.29

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Solution

The fourth proportional to 283,104.01, 390,680.25 and 154,046.29 is: 212,582.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,104.01 : 390,680.25 = 154,046.29 : x
  2. Step 2: Convert to fraction form
    283,104.01/390,680.25 = 154,046.29/x
  3. Step 3: Cross multiply
    283,104.01x = 390,680.25 × 154,046.29
  4. Step 4: Simplify right side
    283,104.01x = 60,182,843,088.77
  5. Step 5: Solve for x
    x = 60,182,843,088.77/283,104.01
  6. Step 6: Final answer
    x = 212,582.09

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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.