Home / 914,333,005.92-1,261,884,222.12-512,555,270.88

Finding the Fourth Proportional to 914,333,005.92, 1,261,884,222.12 and 512,555,270.88

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Solution

The fourth proportional to 914,333,005.92, 1,261,884,222.12 and 512,555,270.88 is: 707,384,951.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    914,333,005.92 : 1,261,884,222.12 = 512,555,270.88 : x
  2. Step 2: Convert to fraction form
    914,333,005.92/1,261,884,222.12 = 512,555,270.88/x
  3. Step 3: Cross multiply
    914,333,005.92x = 1,261,884,222.12 × 512,555,270.88
  4. Step 4: Simplify right side
    914,333,005.92x = 646,785,409,287,914,624
  5. Step 5: Solve for x
    x = 646,785,409,287,914,624/914,333,005.92
  6. Step 6: Final answer
    x = 707,384,951.76

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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.