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Finding the Fourth Proportional to 653,142.06, 901,328.13 and 366,654.78

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Solution

The fourth proportional to 653,142.06, 901,328.13 and 366,654.78 is: 505,979.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,142.06 : 901,328.13 = 366,654.78 : x
  2. Step 2: Convert to fraction form
    653,142.06/901,328.13 = 366,654.78/x
  3. Step 3: Cross multiply
    653,142.06x = 901,328.13 × 366,654.78
  4. Step 4: Simplify right side
    653,142.06x = 330,476,267,212.96
  5. Step 5: Solve for x
    x = 330,476,267,212.96/653,142.06
  6. Step 6: Final answer
    x = 505,979.15

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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.