Home / 812,207.36-1,218,587.92-243,602.34

Finding the Fourth Proportional to 812,207.36, 1,218,587.92 and 243,602.34

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Solution

The fourth proportional to 812,207.36, 1,218,587.92 and 243,602.34 is: 365,486.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,207.36 : 1,218,587.92 = 243,602.34 : x
  2. Step 2: Convert to fraction form
    812,207.36/1,218,587.92 = 243,602.34/x
  3. Step 3: Cross multiply
    812,207.36x = 1,218,587.92 × 243,602.34
  4. Step 4: Simplify right side
    812,207.36x = 296,850,868,807.73
  5. Step 5: Solve for x
    x = 296,850,868,807.73/812,207.36
  6. Step 6: Final answer
    x = 365,486.55

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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.