Home / 684,215.84-944,145.51-378,242.89

Finding the Fourth Proportional to 684,215.84, 944,145.51 and 378,242.89

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Solution

The fourth proportional to 684,215.84, 944,145.51 and 378,242.89 is: 521,935.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,215.84 : 944,145.51 = 378,242.89 : x
  2. Step 2: Convert to fraction form
    684,215.84/944,145.51 = 378,242.89/x
  3. Step 3: Cross multiply
    684,215.84x = 944,145.51 × 378,242.89
  4. Step 4: Simplify right side
    684,215.84x = 357,116,326,282.92
  5. Step 5: Solve for x
    x = 357,116,326,282.92/684,215.84
  6. Step 6: Final answer
    x = 521,935.20

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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.