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Finding the Fourth Proportional to 556,557.65, 768,051.50 and 301,910.66

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Solution

The fourth proportional to 556,557.65, 768,051.50 and 301,910.66 is: 416,637.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,557.65 : 768,051.50 = 301,910.66 : x
  2. Step 2: Convert to fraction form
    556,557.65/768,051.50 = 301,910.66/x
  3. Step 3: Cross multiply
    556,557.65x = 768,051.50 × 301,910.66
  4. Step 4: Simplify right side
    556,557.65x = 231,882,931,438.73
  5. Step 5: Solve for x
    x = 231,882,931,438.73/556,557.65
  6. Step 6: Final answer
    x = 416,637.76

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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.