Home / 811,348.66-1,217,620.95-384,885.82

Finding the Fourth Proportional to 811,348.66, 1,217,620.95 and 384,885.82

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Solution

The fourth proportional to 811,348.66, 1,217,620.95 and 384,885.82 is: 577,612.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,348.66 : 1,217,620.95 = 384,885.82 : x
  2. Step 2: Convert to fraction form
    811,348.66/1,217,620.95 = 384,885.82/x
  3. Step 3: Cross multiply
    811,348.66x = 1,217,620.95 × 384,885.82
  4. Step 4: Simplify right side
    811,348.66x = 468,645,037,789.93
  5. Step 5: Solve for x
    x = 468,645,037,789.93/811,348.66
  6. Step 6: Final answer
    x = 577,612.39

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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.