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Finding the Fourth Proportional to 448,865.76, 619,436.88 and 247,661.76

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Solution

The fourth proportional to 448,865.76, 619,436.88 and 247,661.76 is: 341,774.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,865.76 : 619,436.88 = 247,661.76 : x
  2. Step 2: Convert to fraction form
    448,865.76/619,436.88 = 247,661.76/x
  3. Step 3: Cross multiply
    448,865.76x = 619,436.88 × 247,661.76
  4. Step 4: Simplify right side
    448,865.76x = 153,410,827,909.71
  5. Step 5: Solve for x
    x = 153,410,827,909.71/448,865.76
  6. Step 6: Final answer
    x = 341,774.40

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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.