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Finding the Fourth Proportional to 520,929.63, 781,275.74 and 250,919.82

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Solution

The fourth proportional to 520,929.63, 781,275.74 and 250,919.82 is: 376,322.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,929.63 : 781,275.74 = 250,919.82 : x
  2. Step 2: Convert to fraction form
    520,929.63/781,275.74 = 250,919.82/x
  3. Step 3: Cross multiply
    520,929.63x = 781,275.74 × 250,919.82
  4. Step 4: Simplify right side
    520,929.63x = 196,037,566,796.57
  5. Step 5: Solve for x
    x = 196,037,566,796.57/520,929.63
  6. Step 6: Final answer
    x = 376,322.55

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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.