Home / 356,916.15-534,322.37-312,629.40

Finding the Fourth Proportional to 356,916.15, 534,322.37 and 312,629.40

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Solution

The fourth proportional to 356,916.15, 534,322.37 and 312,629.40 is: 468,022.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,916.15 : 534,322.37 = 312,629.40 : x
  2. Step 2: Convert to fraction form
    356,916.15/534,322.37 = 312,629.40/x
  3. Step 3: Cross multiply
    356,916.15x = 534,322.37 × 312,629.40
  4. Step 4: Simplify right side
    356,916.15x = 167,044,881,939.68
  5. Step 5: Solve for x
    x = 167,044,881,939.68/356,916.15
  6. Step 6: Final answer
    x = 468,022.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.