Home / 520,039.06-717,784.41-293,815.78

Finding the Fourth Proportional to 520,039.06, 717,784.41 and 293,815.78

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Solution

The fourth proportional to 520,039.06, 717,784.41 and 293,815.78 is: 405,539.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,039.06 : 717,784.41 = 293,815.78 : x
  2. Step 2: Convert to fraction form
    520,039.06/717,784.41 = 293,815.78/x
  3. Step 3: Cross multiply
    520,039.06x = 717,784.41 × 293,815.78
  4. Step 4: Simplify right side
    520,039.06x = 210,896,386,295.99
  5. Step 5: Solve for x
    x = 210,896,386,295.99/520,039.06
  6. Step 6: Final answer
    x = 405,539.51

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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.