Home / 519,738.05-717,217.07-290,294.28

Finding the Fourth Proportional to 519,738.05, 717,217.07 and 290,294.28

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Solution

The fourth proportional to 519,738.05, 717,217.07 and 290,294.28 is: 400,594.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,738.05 : 717,217.07 = 290,294.28 : x
  2. Step 2: Convert to fraction form
    519,738.05/717,217.07 = 290,294.28/x
  3. Step 3: Cross multiply
    519,738.05x = 717,217.07 × 290,294.28
  4. Step 4: Simplify right side
    519,738.05x = 208,204,011,487.89
  5. Step 5: Solve for x
    x = 208,204,011,487.89/519,738.05
  6. Step 6: Final answer
    x = 400,594.13

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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.