Home / 690,683.83-1,035,977.45-258,319.13

Finding the Fourth Proportional to 690,683.83, 1,035,977.45 and 258,319.13

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Solution

The fourth proportional to 690,683.83, 1,035,977.45 and 258,319.13 is: 387,460.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,683.83 : 1,035,977.45 = 258,319.13 : x
  2. Step 2: Convert to fraction form
    690,683.83/1,035,977.45 = 258,319.13/x
  3. Step 3: Cross multiply
    690,683.83x = 1,035,977.45 × 258,319.13
  4. Step 4: Simplify right side
    690,683.83x = 267,612,787,112.14
  5. Step 5: Solve for x
    x = 267,612,787,112.14/690,683.83
  6. Step 6: Final answer
    x = 387,460.62

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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.