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Finding the Fourth Proportional to 313,702.74, 432,874.65 and 177,707.57

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Solution

The fourth proportional to 313,702.74, 432,874.65 and 177,707.57 is: 245,216.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,702.74 : 432,874.65 = 177,707.57 : x
  2. Step 2: Convert to fraction form
    313,702.74/432,874.65 = 177,707.57/x
  3. Step 3: Cross multiply
    313,702.74x = 432,874.65 × 177,707.57
  4. Step 4: Simplify right side
    313,702.74x = 76,925,102,103.45
  5. Step 5: Solve for x
    x = 76,925,102,103.45/313,702.74
  6. Step 6: Final answer
    x = 245,216.55

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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.