Home / 354,985.92-489,875.73-193,847.76

Finding the Fourth Proportional to 354,985.92, 489,875.73 and 193,847.76

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Solution

The fourth proportional to 354,985.92, 489,875.73 and 193,847.76 is: 267,507.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,985.92 : 489,875.73 = 193,847.76 : x
  2. Step 2: Convert to fraction form
    354,985.92/489,875.73 = 193,847.76/x
  3. Step 3: Cross multiply
    354,985.92x = 489,875.73 × 193,847.76
  4. Step 4: Simplify right side
    354,985.92x = 94,961,312,938.86
  5. Step 5: Solve for x
    x = 94,961,312,938.86/354,985.92
  6. Step 6: Final answer
    x = 267,507.27

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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.