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Finding the Fourth Proportional to 545,348.36, 818,066.28 and 190,354.52

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Solution

The fourth proportional to 545,348.36, 818,066.28 and 190,354.52 is: 285,547.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,348.36 : 818,066.28 = 190,354.52 : x
  2. Step 2: Convert to fraction form
    545,348.36/818,066.28 = 190,354.52/x
  3. Step 3: Cross multiply
    545,348.36x = 818,066.28 × 190,354.52
  4. Step 4: Simplify right side
    545,348.36x = 155,722,614,057.59
  5. Step 5: Solve for x
    x = 155,722,614,057.59/545,348.36
  6. Step 6: Final answer
    x = 285,547.05

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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.