Home / 419,332.39-578,278.06-281,821.93

Finding the Fourth Proportional to 419,332.39, 578,278.06 and 281,821.93

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Solution

The fourth proportional to 419,332.39, 578,278.06 and 281,821.93 is: 388,645.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,332.39 : 578,278.06 = 281,821.93 : x
  2. Step 2: Convert to fraction form
    419,332.39/578,278.06 = 281,821.93/x
  3. Step 3: Cross multiply
    419,332.39x = 578,278.06 × 281,821.93
  4. Step 4: Simplify right side
    419,332.39x = 162,971,436,795.61
  5. Step 5: Solve for x
    x = 162,971,436,795.61/419,332.39
  6. Step 6: Final answer
    x = 388,645.00

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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.