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Finding the Fourth Proportional to 448,970.80, 619,594.14 and 255,373.55

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Solution

The fourth proportional to 448,970.80, 619,594.14 and 255,373.55 is: 352,423.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,970.80 : 619,594.14 = 255,373.55 : x
  2. Step 2: Convert to fraction form
    448,970.80/619,594.14 = 255,373.55/x
  3. Step 3: Cross multiply
    448,970.80x = 619,594.14 × 255,373.55
  4. Step 4: Simplify right side
    448,970.80x = 158,227,955,091.00
  5. Step 5: Solve for x
    x = 158,227,955,091.00/448,970.80
  6. Step 6: Final answer
    x = 352,423.71

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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.