Home / 347,772.18-521,305.37-197,702.40

Finding the Fourth Proportional to 347,772.18, 521,305.37 and 197,702.40

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Solution

The fourth proportional to 347,772.18, 521,305.37 and 197,702.40 is: 296,352.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,772.18 : 521,305.37 = 197,702.40 : x
  2. Step 2: Convert to fraction form
    347,772.18/521,305.37 = 197,702.40/x
  3. Step 3: Cross multiply
    347,772.18x = 521,305.37 × 197,702.40
  4. Step 4: Simplify right side
    347,772.18x = 103,063,321,793.38
  5. Step 5: Solve for x
    x = 103,063,321,793.38/347,772.18
  6. Step 6: Final answer
    x = 296,352.98

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1.5x scale

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.