Home / 716,239.51-988,667.61-425,850.38

Finding the Fourth Proportional to 716,239.51, 988,667.61 and 425,850.38

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Solution

The fourth proportional to 716,239.51, 988,667.61 and 425,850.38 is: 587,826.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,239.51 : 988,667.61 = 425,850.38 : x
  2. Step 2: Convert to fraction form
    716,239.51/988,667.61 = 425,850.38/x
  3. Step 3: Cross multiply
    716,239.51x = 988,667.61 × 425,850.38
  4. Step 4: Simplify right side
    716,239.51x = 421,024,474,065.79
  5. Step 5: Solve for x
    x = 421,024,474,065.79/716,239.51
  6. Step 6: Final answer
    x = 587,826.38

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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.