Home / 684,139.53-944,030.79-378,174.72

Finding the Fourth Proportional to 684,139.53, 944,030.79 and 378,174.72

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Solution

The fourth proportional to 684,139.53, 944,030.79 and 378,174.72 is: 521,835.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,139.53 : 944,030.79 = 378,174.72 : x
  2. Step 2: Convert to fraction form
    684,139.53/944,030.79 = 378,174.72/x
  3. Step 3: Cross multiply
    684,139.53x = 944,030.79 × 378,174.72
  4. Step 4: Simplify right side
    684,139.53x = 357,008,579,679.63
  5. Step 5: Solve for x
    x = 357,008,579,679.63/684,139.53
  6. Step 6: Final answer
    x = 521,835.92

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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.