Home / 354,510.10-489,229.70-193,365.10

Finding the Fourth Proportional to 354,510.10, 489,229.70 and 193,365.10

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Solution

The fourth proportional to 354,510.10, 489,229.70 and 193,365.10 is: 266,846.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,510.10 : 489,229.70 = 193,365.10 : x
  2. Step 2: Convert to fraction form
    354,510.10/489,229.70 = 193,365.10/x
  3. Step 3: Cross multiply
    354,510.10x = 489,229.70 × 193,365.10
  4. Step 4: Simplify right side
    354,510.10x = 94,599,949,863.47
  5. Step 5: Solve for x
    x = 94,599,949,863.47/354,510.10
  6. Step 6: Final answer
    x = 266,846.98

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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.