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Finding the Fourth Proportional to 380,248.87, 524,743.45 and 210,483.00

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Solution

The fourth proportional to 380,248.87, 524,743.45 and 210,483.00 is: 290,466.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,248.87 : 524,743.45 = 210,483.00 : x
  2. Step 2: Convert to fraction form
    380,248.87/524,743.45 = 210,483.00/x
  3. Step 3: Cross multiply
    380,248.87x = 524,743.45 × 210,483.00
  4. Step 4: Simplify right side
    380,248.87x = 110,449,572,962.63
  5. Step 5: Solve for x
    x = 110,449,572,962.63/380,248.87
  6. Step 6: Final answer
    x = 290,466.54

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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.