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Finding the Fourth Proportional to 683,048.50, 942,616.65 and 381,242.50

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Solution

The fourth proportional to 683,048.50, 942,616.65 and 381,242.50 is: 526,120.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,048.50 : 942,616.65 = 381,242.50 : x
  2. Step 2: Convert to fraction form
    683,048.50/942,616.65 = 381,242.50/x
  3. Step 3: Cross multiply
    683,048.50x = 942,616.65 × 381,242.50
  4. Step 4: Simplify right side
    683,048.50x = 359,365,528,187.63
  5. Step 5: Solve for x
    x = 359,365,528,187.63/683,048.50
  6. Step 6: Final answer
    x = 526,120.08

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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.