Home / 812,259.62-1,217,483.19-338,787.62

Finding the Fourth Proportional to 812,259.62, 1,217,483.19 and 338,787.62

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Solution

The fourth proportional to 812,259.62, 1,217,483.19 and 338,787.62 is: 507,803.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,259.62 : 1,217,483.19 = 338,787.62 : x
  2. Step 2: Convert to fraction form
    812,259.62/1,217,483.19 = 338,787.62/x
  3. Step 3: Cross multiply
    812,259.62x = 1,217,483.19 × 338,787.62
  4. Step 4: Simplify right side
    812,259.62x = 412,468,232,330.11
  5. Step 5: Solve for x
    x = 412,468,232,330.11/812,259.62
  6. Step 6: Final answer
    x = 507,803.44

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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.