Home / 527,448,672.80-791,173,009.20-425,412,000.80

Finding the Fourth Proportional to 527,448,672.80, 791,173,009.20 and 425,412,000.80

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Solution

The fourth proportional to 527,448,672.80, 791,173,009.20 and 425,412,000.80 is: 638,118,001.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,448,672.80 : 791,173,009.20 = 425,412,000.80 : x
  2. Step 2: Convert to fraction form
    527,448,672.80/791,173,009.20 = 425,412,000.80/x
  3. Step 3: Cross multiply
    527,448,672.80x = 791,173,009.20 × 425,412,000.80
  4. Step 4: Simplify right side
    527,448,672.80x = 336,574,492,822,728,832
  5. Step 5: Solve for x
    x = 336,574,492,822,728,832/527,448,672.80
  6. Step 6: Final answer
    x = 638,118,001.20

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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.