Home / 817,899.60-1,226,887.80-256,952.40

Finding the Fourth Proportional to 817,899.60, 1,226,887.80 and 256,952.40

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Solution

The fourth proportional to 817,899.60, 1,226,887.80 and 256,952.40 is: 385,440.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,899.60 : 1,226,887.80 = 256,952.40 : x
  2. Step 2: Convert to fraction form
    817,899.60/1,226,887.80 = 256,952.40/x
  3. Step 3: Cross multiply
    817,899.60x = 1,226,887.80 × 256,952.40
  4. Step 4: Simplify right side
    817,899.60x = 315,251,764,740.72
  5. Step 5: Solve for x
    x = 315,251,764,740.72/817,899.60
  6. Step 6: Final answer
    x = 385,440.66

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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.