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Finding the Fourth Proportional to 545,238.48, 817,799.31 and 190,259.22

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Solution

The fourth proportional to 545,238.48, 817,799.31 and 190,259.22 is: 285,368.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,238.48 : 817,799.31 = 190,259.22 : x
  2. Step 2: Convert to fraction form
    545,238.48/817,799.31 = 190,259.22/x
  3. Step 3: Cross multiply
    545,238.48x = 817,799.31 × 190,259.22
  4. Step 4: Simplify right side
    545,238.48x = 155,593,858,837.14
  5. Step 5: Solve for x
    x = 155,593,858,837.14/545,238.48
  6. Step 6: Final answer
    x = 285,368.45

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1.5x scale

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.