Home / 865,304.40-1,192,433.04-623,129.40

Finding the Fourth Proportional to 865,304.40, 1,192,433.04 and 623,129.40

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Solution

The fourth proportional to 865,304.40, 1,192,433.04 and 623,129.40 is: 858,703.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,304.40 : 1,192,433.04 = 623,129.40 : x
  2. Step 2: Convert to fraction form
    865,304.40/1,192,433.04 = 623,129.40/x
  3. Step 3: Cross multiply
    865,304.40x = 1,192,433.04 × 623,129.40
  4. Step 4: Simplify right side
    865,304.40x = 743,040,084,755.38
  5. Step 5: Solve for x
    x = 743,040,084,755.38/865,304.40
  6. Step 6: Final answer
    x = 858,703.69

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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.