Home / 527,638,511.20-791,457,766.80-255,540,719.20

Finding the Fourth Proportional to 527,638,511.20, 791,457,766.80 and 255,540,719.20

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Solution

The fourth proportional to 527,638,511.20, 791,457,766.80 and 255,540,719.20 is: 383,311,078.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,638,511.20 : 791,457,766.80 = 255,540,719.20 : x
  2. Step 2: Convert to fraction form
    527,638,511.20/791,457,766.80 = 255,540,719.20/x
  3. Step 3: Cross multiply
    527,638,511.20x = 791,457,766.80 × 255,540,719.20
  4. Step 4: Simplify right side
    527,638,511.20x = 202,249,686,944,497,856
  5. Step 5: Solve for x
    x = 202,249,686,944,497,856/527,638,511.20
  6. Step 6: Final answer
    x = 383,311,078.80

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.