Home / 865,868.16-1,194,794.49-478,631.25

Finding the Fourth Proportional to 865,868.16, 1,194,794.49 and 478,631.25

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Solution

The fourth proportional to 865,868.16, 1,194,794.49 and 478,631.25 is: 660,453.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,868.16 : 1,194,794.49 = 478,631.25 : x
  2. Step 2: Convert to fraction form
    865,868.16/1,194,794.49 = 478,631.25/x
  3. Step 3: Cross multiply
    865,868.16x = 1,194,794.49 × 478,631.25
  4. Step 4: Simplify right side
    865,868.16x = 571,865,980,241.81
  5. Step 5: Solve for x
    x = 571,865,980,241.81/865,868.16
  6. Step 6: Final answer
    x = 660,453.87

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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.