Home / 678,277.75-936,026.94-423,776.56

Finding the Fourth Proportional to 678,277.75, 936,026.94 and 423,776.56

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Solution

The fourth proportional to 678,277.75, 936,026.94 and 423,776.56 is: 584,813.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,277.75 : 936,026.94 = 423,776.56 : x
  2. Step 2: Convert to fraction form
    678,277.75/936,026.94 = 423,776.56/x
  3. Step 3: Cross multiply
    678,277.75x = 936,026.94 × 423,776.56
  4. Step 4: Simplify right side
    678,277.75x = 396,666,276,700.53
  5. Step 5: Solve for x
    x = 396,666,276,700.53/678,277.75
  6. Step 6: Final answer
    x = 584,813.93

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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.