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Finding the Fourth Proportional to 299,794.96, 413,706.12 and 172,490.32

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Solution

The fourth proportional to 299,794.96, 413,706.12 and 172,490.32 is: 238,030.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,794.96 : 413,706.12 = 172,490.32 : x
  2. Step 2: Convert to fraction form
    299,794.96/413,706.12 = 172,490.32/x
  3. Step 3: Cross multiply
    299,794.96x = 413,706.12 × 172,490.32
  4. Step 4: Simplify right side
    299,794.96x = 71,360,301,024.76
  5. Step 5: Solve for x
    x = 71,360,301,024.76/299,794.96
  6. Step 6: Final answer
    x = 238,030.36

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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.