Home / 913,906.89-1,261,230.92-506,008.74

Finding the Fourth Proportional to 913,906.89, 1,261,230.92 and 506,008.74

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Solution

The fourth proportional to 913,906.89, 1,261,230.92 and 506,008.74 is: 698,313.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,906.89 : 1,261,230.92 = 506,008.74 : x
  2. Step 2: Convert to fraction form
    913,906.89/1,261,230.92 = 506,008.74/x
  3. Step 3: Cross multiply
    913,906.89x = 1,261,230.92 × 506,008.74
  4. Step 4: Simplify right side
    913,906.89x = 638,193,868,678.24
  5. Step 5: Solve for x
    x = 638,193,868,678.24/913,906.89
  6. Step 6: Final answer
    x = 698,313.88

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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.