Home / 684,035.99-944,063.40-393,641.57

Finding the Fourth Proportional to 684,035.99, 944,063.40 and 393,641.57

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Solution

The fourth proportional to 684,035.99, 944,063.40 and 393,641.57 is: 543,279.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,035.99 : 944,063.40 = 393,641.57 : x
  2. Step 2: Convert to fraction form
    684,035.99/944,063.40 = 393,641.57/x
  3. Step 3: Cross multiply
    684,035.99x = 944,063.40 × 393,641.57
  4. Step 4: Simplify right side
    684,035.99x = 371,622,602,791.85
  5. Step 5: Solve for x
    x = 371,622,602,791.85/684,035.99
  6. Step 6: Final answer
    x = 543,279.31

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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.