Home / 669,074.93-923,337.11-378,686.48

Finding the Fourth Proportional to 669,074.93, 923,337.11 and 378,686.48

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Solution

The fourth proportional to 669,074.93, 923,337.11 and 378,686.48 is: 522,595.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,074.93 : 923,337.11 = 378,686.48 : x
  2. Step 2: Convert to fraction form
    669,074.93/923,337.11 = 378,686.48/x
  3. Step 3: Cross multiply
    669,074.93x = 923,337.11 × 378,686.48
  4. Step 4: Simplify right side
    669,074.93x = 349,655,283,294.33
  5. Step 5: Solve for x
    x = 349,655,283,294.33/669,074.93
  6. Step 6: Final answer
    x = 522,595.11

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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.