Home / 691,213.48-953,894.82-404,706.76

Finding the Fourth Proportional to 691,213.48, 953,894.82 and 404,706.76

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Solution

The fourth proportional to 691,213.48, 953,894.82 and 404,706.76 is: 558,507.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,213.48 : 953,894.82 = 404,706.76 : x
  2. Step 2: Convert to fraction form
    691,213.48/953,894.82 = 404,706.76/x
  3. Step 3: Cross multiply
    691,213.48x = 953,894.82 × 404,706.76
  4. Step 4: Simplify right side
    691,213.48x = 386,047,681,982.98
  5. Step 5: Solve for x
    x = 386,047,681,982.98/691,213.48
  6. Step 6: Final answer
    x = 558,507.17

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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.