Home / 620,557,666.20-930,836,499.30-611,487,739.80

Finding the Fourth Proportional to 620,557,666.20, 930,836,499.30 and 611,487,739.80

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Solution

The fourth proportional to 620,557,666.20, 930,836,499.30 and 611,487,739.80 is: 917,231,609.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,557,666.20 : 930,836,499.30 = 611,487,739.80 : x
  2. Step 2: Convert to fraction form
    620,557,666.20/930,836,499.30 = 611,487,739.80/x
  3. Step 3: Cross multiply
    620,557,666.20x = 930,836,499.30 × 611,487,739.80
  4. Step 4: Simplify right side
    620,557,666.20x = 569,195,107,080,301,184
  5. Step 5: Solve for x
    x = 569,195,107,080,301,184/620,557,666.20
  6. Step 6: Final answer
    x = 917,231,609.70

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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.