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Finding the Fourth Proportional to 287,415.96, 396,603.98 and 177,017.02

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Solution

The fourth proportional to 287,415.96, 396,603.98 and 177,017.02 is: 244,264.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,415.96 : 396,603.98 = 177,017.02 : x
  2. Step 2: Convert to fraction form
    287,415.96/396,603.98 = 177,017.02/x
  3. Step 3: Cross multiply
    287,415.96x = 396,603.98 × 177,017.02
  4. Step 4: Simplify right side
    287,415.96x = 70,205,654,659.74
  5. Step 5: Solve for x
    x = 70,205,654,659.74/287,415.96
  6. Step 6: Final answer
    x = 244,264.98

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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.