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Finding the Fourth Proportional to 354,884.45, 489,747.96 and 193,746.29

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Solution

The fourth proportional to 354,884.45, 489,747.96 and 193,746.29 is: 267,373.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,884.45 : 489,747.96 = 193,746.29 : x
  2. Step 2: Convert to fraction form
    354,884.45/489,747.96 = 193,746.29/x
  3. Step 3: Cross multiply
    354,884.45x = 489,747.96 × 193,746.29
  4. Step 4: Simplify right side
    354,884.45x = 94,886,849,316.34
  5. Step 5: Solve for x
    x = 94,886,849,316.34/354,884.45
  6. Step 6: Final answer
    x = 267,373.93

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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.