Home / 665,449,146.46-913,511,017.27-571,199,668.21

Finding the Fourth Proportional to 665,449,146.46, 913,511,017.27 and 571,199,668.21

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Solution

The fourth proportional to 665,449,146.46, 913,511,017.27 and 571,199,668.21 is: 784,127,822.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,449,146.46 : 913,511,017.27 = 571,199,668.21 : x
  2. Step 2: Convert to fraction form
    665,449,146.46/913,511,017.27 = 571,199,668.21/x
  3. Step 3: Cross multiply
    665,449,146.46x = 913,511,017.27 × 571,199,668.21
  4. Step 4: Simplify right side
    665,449,146.46x = 521,797,189,965,663,808
  5. Step 5: Solve for x
    x = 521,797,189,965,663,808/665,449,146.46
  6. Step 6: Final answer
    x = 784,127,822.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.