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Finding the Fourth Proportional to 319,477.34, 440,863.88 and 183,415.53

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Solution

The fourth proportional to 319,477.34, 440,863.88 and 183,415.53 is: 253,104.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,477.34 : 440,863.88 = 183,415.53 : x
  2. Step 2: Convert to fraction form
    319,477.34/440,863.88 = 183,415.53/x
  3. Step 3: Cross multiply
    319,477.34x = 440,863.88 × 183,415.53
  4. Step 4: Simplify right side
    319,477.34x = 80,861,282,666.60
  5. Step 5: Solve for x
    x = 80,861,282,666.60/319,477.34
  6. Step 6: Final answer
    x = 253,104.91

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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.