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Finding the Fourth Proportional to 519,641.51, 778,834.41 and 253,002.47

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Solution

The fourth proportional to 519,641.51, 778,834.41 and 253,002.47 is: 379,198.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,641.51 : 778,834.41 = 253,002.47 : x
  2. Step 2: Convert to fraction form
    519,641.51/778,834.41 = 253,002.47/x
  3. Step 3: Cross multiply
    519,641.51x = 778,834.41 × 253,002.47
  4. Step 4: Simplify right side
    519,641.51x = 197,047,025,556.82
  5. Step 5: Solve for x
    x = 197,047,025,556.82/519,641.51
  6. Step 6: Final answer
    x = 379,198.01

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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.