Home / 919,672.20-1,269,258.12-557,085.42

Finding the Fourth Proportional to 919,672.20, 1,269,258.12 and 557,085.42

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Solution

The fourth proportional to 919,672.20, 1,269,258.12 and 557,085.42 is: 768,844.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,672.20 : 1,269,258.12 = 557,085.42 : x
  2. Step 2: Convert to fraction form
    919,672.20/1,269,258.12 = 557,085.42/x
  3. Step 3: Cross multiply
    919,672.20x = 1,269,258.12 × 557,085.42
  4. Step 4: Simplify right side
    919,672.20x = 707,085,192,868.61
  5. Step 5: Solve for x
    x = 707,085,192,868.61/919,672.20
  6. Step 6: Final answer
    x = 768,844.80

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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.