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Finding the Fourth Proportional to 448,416.62, 671,877.58 and 315,058.13

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Solution

The fourth proportional to 448,416.62, 671,877.58 and 315,058.13 is: 472,062.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,416.62 : 671,877.58 = 315,058.13 : x
  2. Step 2: Convert to fraction form
    448,416.62/671,877.58 = 315,058.13/x
  3. Step 3: Cross multiply
    448,416.62x = 671,877.58 × 315,058.13
  4. Step 4: Simplify right side
    448,416.62x = 211,680,493,943.73
  5. Step 5: Solve for x
    x = 211,680,493,943.73/448,416.62
  6. Step 6: Final answer
    x = 472,062.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.