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Finding the Fourth Proportional to 679,125.87, 936,803.45 and 424,034.19

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Solution

The fourth proportional to 679,125.87, 936,803.45 and 424,034.19 is: 584,923.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,125.87 : 936,803.45 = 424,034.19 : x
  2. Step 2: Convert to fraction form
    679,125.87/936,803.45 = 424,034.19/x
  3. Step 3: Cross multiply
    679,125.87x = 936,803.45 × 424,034.19
  4. Step 4: Simplify right side
    679,125.87x = 397,236,689,989.79
  5. Step 5: Solve for x
    x = 397,236,689,989.79/679,125.87
  6. Step 6: Final answer
    x = 584,923.51

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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.