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Finding the Fourth Proportional to 562,353.63, 776,048 and 307,704.81

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Solution

The fourth proportional to 562,353.63, 776,048 and 307,704.81 is: 424,632.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,353.63 : 776,048 = 307,704.81 : x
  2. Step 2: Convert to fraction form
    562,353.63/776,048 = 307,704.81/x
  3. Step 3: Cross multiply
    562,353.63x = 776,048 × 307,704.81
  4. Step 4: Simplify right side
    562,353.63x = 238,793,702,390.88
  5. Step 5: Solve for x
    x = 238,793,702,390.88/562,353.63
  6. Step 6: Final answer
    x = 424,632.63

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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.