Home / 679,125.09-936,988.21-407,093.73

Finding the Fourth Proportional to 679,125.09, 936,988.21 and 407,093.73

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Solution

The fourth proportional to 679,125.09, 936,988.21 and 407,093.73 is: 561,666.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,125.09 : 936,988.21 = 407,093.73 : x
  2. Step 2: Convert to fraction form
    679,125.09/936,988.21 = 407,093.73/x
  3. Step 3: Cross multiply
    679,125.09x = 936,988.21 × 407,093.73
  4. Step 4: Simplify right side
    679,125.09x = 381,442,025,374.92
  5. Step 5: Solve for x
    x = 381,442,025,374.92/679,125.09
  6. Step 6: Final answer
    x = 561,666.81

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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.