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Finding the Fourth Proportional to 472,893.70, 709,718.83 and 248,386.53

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Solution

The fourth proportional to 472,893.70, 709,718.83 and 248,386.53 is: 372,778.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,893.70 : 709,718.83 = 248,386.53 : x
  2. Step 2: Convert to fraction form
    472,893.70/709,718.83 = 248,386.53/x
  3. Step 3: Cross multiply
    472,893.70x = 709,718.83 × 248,386.53
  4. Step 4: Simplify right side
    472,893.70x = 176,284,599,499.84
  5. Step 5: Solve for x
    x = 176,284,599,499.84/472,893.70
  6. Step 6: Final answer
    x = 372,778.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.