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Finding the Fourth Proportional to 960,337,212.86, 1,324,859,541.90 and 642,899,725.13

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Solution

The fourth proportional to 960,337,212.86, 1,324,859,541.90 and 642,899,725.13 is: 886,929,949.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    960,337,212.86 : 1,324,859,541.90 = 642,899,725.13 : x
  2. Step 2: Convert to fraction form
    960,337,212.86/1,324,859,541.90 = 642,899,725.13/x
  3. Step 3: Cross multiply
    960,337,212.86x = 1,324,859,541.90 × 642,899,725.13
  4. Step 4: Simplify right side
    960,337,212.86x = 851,751,835,323,367,808
  5. Step 5: Solve for x
    x = 851,751,835,323,367,808/960,337,212.86
  6. Step 6: Final answer
    x = 886,929,949.10

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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.