Home / 516,235.52-712,297.03-312,246.51

Finding the Fourth Proportional to 516,235.52, 712,297.03 and 312,246.51

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Solution

The fourth proportional to 516,235.52, 712,297.03 and 312,246.51 is: 430,834.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,235.52 : 712,297.03 = 312,246.51 : x
  2. Step 2: Convert to fraction form
    516,235.52/712,297.03 = 312,246.51/x
  3. Step 3: Cross multiply
    516,235.52x = 712,297.03 × 312,246.51
  4. Step 4: Simplify right side
    516,235.52x = 222,412,261,700.87
  5. Step 5: Solve for x
    x = 222,412,261,700.87/516,235.52
  6. Step 6: Final answer
    x = 430,834.87

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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.