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Finding the Fourth Proportional to 324,128.48, 447,278.48 and 180,877.28

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Solution

The fourth proportional to 324,128.48, 447,278.48 and 180,877.28 is: 249,600.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,128.48 : 447,278.48 = 180,877.28 : x
  2. Step 2: Convert to fraction form
    324,128.48/447,278.48 = 180,877.28/x
  3. Step 3: Cross multiply
    324,128.48x = 447,278.48 × 180,877.28
  4. Step 4: Simplify right side
    324,128.48x = 80,902,514,864.93
  5. Step 5: Solve for x
    x = 80,902,514,864.93/324,128.48
  6. Step 6: Final answer
    x = 249,600.14

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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.