Home / 663,974.20-996,998.10-384,038.20

Finding the Fourth Proportional to 663,974.20, 996,998.10 and 384,038.20

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Solution

The fourth proportional to 663,974.20, 996,998.10 and 384,038.20 is: 576,656.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,974.20 : 996,998.10 = 384,038.20 : x
  2. Step 2: Convert to fraction form
    663,974.20/996,998.10 = 384,038.20/x
  3. Step 3: Cross multiply
    663,974.20x = 996,998.10 × 384,038.20
  4. Step 4: Simplify right side
    663,974.20x = 382,885,355,727.42
  5. Step 5: Solve for x
    x = 382,885,355,727.42/663,974.20
  6. Step 6: Final answer
    x = 576,656.98

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Double scale
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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.