Home / 951,517,006.70-1,312,986,968.87-528,148,514.67

Finding the Fourth Proportional to 951,517,006.70, 1,312,986,968.87 and 528,148,514.67

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Solution

The fourth proportional to 951,517,006.70, 1,312,986,968.87 and 528,148,514.67 is: 728,785,836.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    951,517,006.70 : 1,312,986,968.87 = 528,148,514.67 : x
  2. Step 2: Convert to fraction form
    951,517,006.70/1,312,986,968.87 = 528,148,514.67/x
  3. Step 3: Cross multiply
    951,517,006.70x = 1,312,986,968.87 × 528,148,514.67
  4. Step 4: Simplify right side
    951,517,006.70x = 693,452,117,380,550,400
  5. Step 5: Solve for x
    x = 693,452,117,380,550,400/951,517,006.70
  6. Step 6: Final answer
    x = 728,785,836.20

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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.