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Finding the Fourth Proportional to 448,858.18, 619,423.95 and 247,654.18

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Solution

The fourth proportional to 448,858.18, 619,423.95 and 247,654.18 is: 341,762.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,858.18 : 619,423.95 = 247,654.18 : x
  2. Step 2: Convert to fraction form
    448,858.18/619,423.95 = 247,654.18/x
  3. Step 3: Cross multiply
    448,858.18x = 619,423.95 × 247,654.18
  4. Step 4: Simplify right side
    448,858.18x = 153,402,930,409.61
  5. Step 5: Solve for x
    x = 153,402,930,409.61/448,858.18
  6. Step 6: Final answer
    x = 341,762.58

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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.