Home / 812,111.11-1,120,699.76-449,527.19

Finding the Fourth Proportional to 812,111.11, 1,120,699.76 and 449,527.19

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Solution

The fourth proportional to 812,111.11, 1,120,699.76 and 449,527.19 is: 620,340.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,111.11 : 1,120,699.76 = 449,527.19 : x
  2. Step 2: Convert to fraction form
    812,111.11/1,120,699.76 = 449,527.19/x
  3. Step 3: Cross multiply
    812,111.11x = 1,120,699.76 × 449,527.19
  4. Step 4: Simplify right side
    812,111.11x = 503,785,006,095.34
  5. Step 5: Solve for x
    x = 503,785,006,095.34/812,111.11
  6. Step 6: Final answer
    x = 620,340.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.