Home / 890,436.16-1,228,757.88-503,259.40

Finding the Fourth Proportional to 890,436.16, 1,228,757.88 and 503,259.40

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Solution

The fourth proportional to 890,436.16, 1,228,757.88 and 503,259.40 is: 694,473.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,436.16 : 1,228,757.88 = 503,259.40 : x
  2. Step 2: Convert to fraction form
    890,436.16/1,228,757.88 = 503,259.40/x
  3. Step 3: Cross multiply
    890,436.16x = 1,228,757.88 × 503,259.40
  4. Step 4: Simplify right side
    890,436.16x = 618,383,953,434.07
  5. Step 5: Solve for x
    x = 618,383,953,434.07/890,436.16
  6. Step 6: Final answer
    x = 694,473.09

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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.