Home / 910,359,883.27-1,256,296,623.69-492,672,168.60

Finding the Fourth Proportional to 910,359,883.27, 1,256,296,623.69 and 492,672,168.60

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Solution

The fourth proportional to 910,359,883.27, 1,256,296,623.69 and 492,672,168.60 is: 679,887,584.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,359,883.27 : 1,256,296,623.69 = 492,672,168.60 : x
  2. Step 2: Convert to fraction form
    910,359,883.27/1,256,296,623.69 = 492,672,168.60/x
  3. Step 3: Cross multiply
    910,359,883.27x = 1,256,296,623.69 × 492,672,168.60
  4. Step 4: Simplify right side
    910,359,883.27x = 618,942,381,998,210,432
  5. Step 5: Solve for x
    x = 618,942,381,998,210,432/910,359,883.27
  6. Step 6: Final answer
    x = 679,887,584.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.