Home / 579,413,856.80-869,120,785.20-526,694,909.60

Finding the Fourth Proportional to 579,413,856.80, 869,120,785.20 and 526,694,909.60

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Solution

The fourth proportional to 579,413,856.80, 869,120,785.20 and 526,694,909.60 is: 790,042,364.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,413,856.80 : 869,120,785.20 = 526,694,909.60 : x
  2. Step 2: Convert to fraction form
    579,413,856.80/869,120,785.20 = 526,694,909.60/x
  3. Step 3: Cross multiply
    579,413,856.80x = 869,120,785.20 × 526,694,909.60
  4. Step 4: Simplify right side
    579,413,856.80x = 457,761,493,392,395,072
  5. Step 5: Solve for x
    x = 457,761,493,392,395,072/579,413,856.80
  6. Step 6: Final answer
    x = 790,042,364.40

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Double scale
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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.