Home / 889,314.98-1,333,772.80-409,081.56

Finding the Fourth Proportional to 889,314.98, 1,333,772.80 and 409,081.56

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Solution

The fourth proportional to 889,314.98, 1,333,772.80 and 409,081.56 is: 613,530.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,314.98 : 1,333,772.80 = 409,081.56 : x
  2. Step 2: Convert to fraction form
    889,314.98/1,333,772.80 = 409,081.56/x
  3. Step 3: Cross multiply
    889,314.98x = 1,333,772.80 × 409,081.56
  4. Step 4: Simplify right side
    889,314.98x = 545,621,857,709.57
  5. Step 5: Solve for x
    x = 545,621,857,709.57/889,314.98
  6. Step 6: Final answer
    x = 613,530.49

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.