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Finding the Fourth Proportional to 280,386.89, 385,951.79 and 244,513.61

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Solution

The fourth proportional to 280,386.89, 385,951.79 and 244,513.61 is: 336,572.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,386.89 : 385,951.79 = 244,513.61 : x
  2. Step 2: Convert to fraction form
    280,386.89/385,951.79 = 244,513.61/x
  3. Step 3: Cross multiply
    280,386.89x = 385,951.79 × 244,513.61
  4. Step 4: Simplify right side
    280,386.89x = 94,370,462,306.53
  5. Step 5: Solve for x
    x = 94,370,462,306.53/280,386.89
  6. Step 6: Final answer
    x = 336,572.31

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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.