Home / 817,900.60-1,226,889.30-256,953.40

Finding the Fourth Proportional to 817,900.60, 1,226,889.30 and 256,953.40

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Solution

The fourth proportional to 817,900.60, 1,226,889.30 and 256,953.40 is: 385,442.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,900.60 : 1,226,889.30 = 256,953.40 : x
  2. Step 2: Convert to fraction form
    817,900.60/1,226,889.30 = 256,953.40/x
  3. Step 3: Cross multiply
    817,900.60x = 1,226,889.30 × 256,953.40
  4. Step 4: Simplify right side
    817,900.60x = 315,253,377,058.62
  5. Step 5: Solve for x
    x = 315,253,377,058.62/817,900.60
  6. Step 6: Final answer
    x = 385,442.16

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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.