Home / 354,951.02-489,828.70-193,805.57

Finding the Fourth Proportional to 354,951.02, 489,828.70 and 193,805.57

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Solution

The fourth proportional to 354,951.02, 489,828.70 and 193,805.57 is: 267,449.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,951.02 : 489,828.70 = 193,805.57 : x
  2. Step 2: Convert to fraction form
    354,951.02/489,828.70 = 193,805.57/x
  3. Step 3: Cross multiply
    354,951.02x = 489,828.70 × 193,805.57
  4. Step 4: Simplify right side
    354,951.02x = 94,931,531,872.69
  5. Step 5: Solve for x
    x = 94,931,531,872.69/354,951.02
  6. Step 6: Final answer
    x = 267,449.66

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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.