Home / 492,569.20-679,814.37-299,073.16

Finding the Fourth Proportional to 492,569.20, 679,814.37 and 299,073.16

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Solution

The fourth proportional to 492,569.20, 679,814.37 and 299,073.16 is: 412,762.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,569.20 : 679,814.37 = 299,073.16 : x
  2. Step 2: Convert to fraction form
    492,569.20/679,814.37 = 299,073.16/x
  3. Step 3: Cross multiply
    492,569.20x = 679,814.37 × 299,073.16
  4. Step 4: Simplify right side
    492,569.20x = 203,314,232,699.08
  5. Step 5: Solve for x
    x = 203,314,232,699.08/492,569.20
  6. Step 6: Final answer
    x = 412,762.78

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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.