Home / 911,339.28-1,257,540.12-529,304.40

Finding the Fourth Proportional to 911,339.28, 1,257,540.12 and 529,304.40

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Solution

The fourth proportional to 911,339.28, 1,257,540.12 and 529,304.40 is: 730,377.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,339.28 : 1,257,540.12 = 529,304.40 : x
  2. Step 2: Convert to fraction form
    911,339.28/1,257,540.12 = 529,304.40/x
  3. Step 3: Cross multiply
    911,339.28x = 1,257,540.12 × 529,304.40
  4. Step 4: Simplify right side
    911,339.28x = 665,621,518,692.53
  5. Step 5: Solve for x
    x = 665,621,518,692.53/911,339.28
  6. Step 6: Final answer
    x = 730,377.30

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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.