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Finding the Fourth Proportional to 562,257.12, 775,901.50 and 307,610.40

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Solution

The fourth proportional to 562,257.12, 775,901.50 and 307,610.40 is: 424,495.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,257.12 : 775,901.50 = 307,610.40 : x
  2. Step 2: Convert to fraction form
    562,257.12/775,901.50 = 307,610.40/x
  3. Step 3: Cross multiply
    562,257.12x = 775,901.50 × 307,610.40
  4. Step 4: Simplify right side
    562,257.12x = 238,675,370,775.60
  5. Step 5: Solve for x
    x = 238,675,370,775.60/562,257.12
  6. Step 6: Final answer
    x = 424,495.06

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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.