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Finding the Fourth Proportional to 354,818.32, 489,663.72 and 193,684.24

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Solution

The fourth proportional to 354,818.32, 489,663.72 and 193,684.24 is: 267,292.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,818.32 : 489,663.72 = 193,684.24 : x
  2. Step 2: Convert to fraction form
    354,818.32/489,663.72 = 193,684.24/x
  3. Step 3: Cross multiply
    354,818.32x = 489,663.72 × 193,684.24
  4. Step 4: Simplify right side
    354,818.32x = 94,840,145,463.77
  5. Step 5: Solve for x
    x = 94,840,145,463.77/354,818.32
  6. Step 6: Final answer
    x = 267,292.13

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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.