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Finding the Fourth Proportional to 362,615.76, 500,443.56 and 219,411.12

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Solution

The fourth proportional to 362,615.76, 500,443.56 and 219,411.12 is: 302,807.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,615.76 : 500,443.56 = 219,411.12 : x
  2. Step 2: Convert to fraction form
    362,615.76/500,443.56 = 219,411.12/x
  3. Step 3: Cross multiply
    362,615.76x = 500,443.56 × 219,411.12
  4. Step 4: Simplify right side
    362,615.76x = 109,802,881,996.39
  5. Step 5: Solve for x
    x = 109,802,881,996.39/362,615.76
  6. Step 6: Final answer
    x = 302,807.80

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1.5x scale

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.