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Finding the Fourth Proportional to 562,687.65, 776,508.98 and 308,038.83

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Solution

The fourth proportional to 562,687.65, 776,508.98 and 308,038.83 is: 425,093.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,687.65 : 776,508.98 = 308,038.83 : x
  2. Step 2: Convert to fraction form
    562,687.65/776,508.98 = 308,038.83/x
  3. Step 3: Cross multiply
    562,687.65x = 776,508.98 × 308,038.83
  4. Step 4: Simplify right side
    562,687.65x = 239,194,916,143.50
  5. Step 5: Solve for x
    x = 239,194,916,143.50/562,687.65
  6. Step 6: Final answer
    x = 425,093.60

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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.