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Finding the Fourth Proportional to 559,926.65, 772,665.45 and 318,175.67

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Solution

The fourth proportional to 559,926.65, 772,665.45 and 318,175.67 is: 439,063.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,926.65 : 772,665.45 = 318,175.67 : x
  2. Step 2: Convert to fraction form
    559,926.65/772,665.45 = 318,175.67/x
  3. Step 3: Cross multiply
    559,926.65x = 772,665.45 × 318,175.67
  4. Step 4: Simplify right side
    559,926.65x = 245,843,343,376.27
  5. Step 5: Solve for x
    x = 245,843,343,376.27/559,926.65
  6. Step 6: Final answer
    x = 439,063.48

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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.