Home / 405,136.84-559,115.10-223,848.73

Finding the Fourth Proportional to 405,136.84, 559,115.10 and 223,848.73

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Solution

The fourth proportional to 405,136.84, 559,115.10 and 223,848.73 is: 308,925.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,136.84 : 559,115.10 = 223,848.73 : x
  2. Step 2: Convert to fraction form
    405,136.84/559,115.10 = 223,848.73/x
  3. Step 3: Cross multiply
    405,136.84x = 559,115.10 × 223,848.73
  4. Step 4: Simplify right side
    405,136.84x = 125,157,205,058.82
  5. Step 5: Solve for x
    x = 125,157,205,058.82/405,136.84
  6. Step 6: Final answer
    x = 308,925.76

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Double scale
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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.