Home / 516,325.25-712,595.67-289,970.75

Finding the Fourth Proportional to 516,325.25, 712,595.67 and 289,970.75

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Solution

The fourth proportional to 516,325.25, 712,595.67 and 289,970.75 is: 400,197.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,325.25 : 712,595.67 = 289,970.75 : x
  2. Step 2: Convert to fraction form
    516,325.25/712,595.67 = 289,970.75/x
  3. Step 3: Cross multiply
    516,325.25x = 712,595.67 × 289,970.75
  4. Step 4: Simplify right side
    516,325.25x = 206,631,900,876.65
  5. Step 5: Solve for x
    x = 206,631,900,876.65/516,325.25
  6. Step 6: Final answer
    x = 400,197.16

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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.