Home / 808,312.68-1,212,877.80-538,624.44

Finding the Fourth Proportional to 808,312.68, 1,212,877.80 and 538,624.44

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Solution

The fourth proportional to 808,312.68, 1,212,877.80 and 538,624.44 is: 808,209.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,312.68 : 1,212,877.80 = 538,624.44 : x
  2. Step 2: Convert to fraction form
    808,312.68/1,212,877.80 = 538,624.44/x
  3. Step 3: Cross multiply
    808,312.68x = 1,212,877.80 × 538,624.44
  4. Step 4: Simplify right side
    808,312.68x = 653,285,625,813.43
  5. Step 5: Solve for x
    x = 653,285,625,813.43/808,312.68
  6. Step 6: Final answer
    x = 808,209.05

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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.