Home / 515,041,216.20-772,561,824.30-494,952,746.40

Finding the Fourth Proportional to 515,041,216.20, 772,561,824.30 and 494,952,746.40

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Solution

The fourth proportional to 515,041,216.20, 772,561,824.30 and 494,952,746.40 is: 742,429,119.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,041,216.20 : 772,561,824.30 = 494,952,746.40 : x
  2. Step 2: Convert to fraction form
    515,041,216.20/772,561,824.30 = 494,952,746.40/x
  3. Step 3: Cross multiply
    515,041,216.20x = 772,561,824.30 × 494,952,746.40
  4. Step 4: Simplify right side
    515,041,216.20x = 382,381,596,701,079,232
  5. Step 5: Solve for x
    x = 382,381,596,701,079,232/515,041,216.20
  6. Step 6: Final answer
    x = 742,429,119.60

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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.