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Finding the Fourth Proportional to 663,608.88, 994,823.88 and 258,707.76

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Solution

The fourth proportional to 663,608.88, 994,823.88 and 258,707.76 is: 387,831.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,608.88 : 994,823.88 = 258,707.76 : x
  2. Step 2: Convert to fraction form
    663,608.88/994,823.88 = 258,707.76/x
  3. Step 3: Cross multiply
    663,608.88x = 994,823.88 × 258,707.76
  4. Step 4: Simplify right side
    663,608.88x = 257,368,657,589.31
  5. Step 5: Solve for x
    x = 257,368,657,589.31/663,608.88
  6. Step 6: Final answer
    x = 387,831.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.