Home / 913,996.96-1,261,458.18-521,530.70

Finding the Fourth Proportional to 913,996.96, 1,261,458.18 and 521,530.70

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Solution

The fourth proportional to 913,996.96, 1,261,458.18 and 521,530.70 is: 719,793.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,996.96 : 1,261,458.18 = 521,530.70 : x
  2. Step 2: Convert to fraction form
    913,996.96/1,261,458.18 = 521,530.70/x
  3. Step 3: Cross multiply
    913,996.96x = 1,261,458.18 × 521,530.70
  4. Step 4: Simplify right side
    913,996.96x = 657,889,169,891.34
  5. Step 5: Solve for x
    x = 657,889,169,891.34/913,996.96
  6. Step 6: Final answer
    x = 719,793.61

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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.