Home / 690,215.23-952,350.60-435,418.75

Finding the Fourth Proportional to 690,215.23, 952,350.60 and 435,418.75

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Solution

The fourth proportional to 690,215.23, 952,350.60 and 435,418.75 is: 600,785.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,215.23 : 952,350.60 = 435,418.75 : x
  2. Step 2: Convert to fraction form
    690,215.23/952,350.60 = 435,418.75/x
  3. Step 3: Cross multiply
    690,215.23x = 952,350.60 × 435,418.75
  4. Step 4: Simplify right side
    690,215.23x = 414,671,307,813.75
  5. Step 5: Solve for x
    x = 414,671,307,813.75/690,215.23
  6. Step 6: Final answer
    x = 600,785.51

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Double scale
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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.