Home / 723,983.67-999,242.87-418,109.85

Finding the Fourth Proportional to 723,983.67, 999,242.87 and 418,109.85

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Solution

The fourth proportional to 723,983.67, 999,242.87 and 418,109.85 is: 577,075.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,983.67 : 999,242.87 = 418,109.85 : x
  2. Step 2: Convert to fraction form
    723,983.67/999,242.87 = 418,109.85/x
  3. Step 3: Cross multiply
    723,983.67x = 999,242.87 × 418,109.85
  4. Step 4: Simplify right side
    723,983.67x = 417,793,284,398.72
  5. Step 5: Solve for x
    x = 417,793,284,398.72/723,983.67
  6. Step 6: Final answer
    x = 577,075.56

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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.