Home / 915,832,865.28-1,263,734,528.64-619,120,715.52

Finding the Fourth Proportional to 915,832,865.28, 1,263,734,528.64 and 619,120,715.52

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Solution

The fourth proportional to 915,832,865.28, 1,263,734,528.64 and 619,120,715.52 is: 854,308,963.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,832,865.28 : 1,263,734,528.64 = 619,120,715.52 : x
  2. Step 2: Convert to fraction form
    915,832,865.28/1,263,734,528.64 = 619,120,715.52/x
  3. Step 3: Cross multiply
    915,832,865.28x = 1,263,734,528.64 × 619,120,715.52
  4. Step 4: Simplify right side
    915,832,865.28x = 782,404,225,598,926,720
  5. Step 5: Solve for x
    x = 782,404,225,598,926,720/915,832,865.28
  6. Step 6: Final answer
    x = 854,308,963.20

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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.