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Finding the Fourth Proportional to 545,347.86, 818,065.53 and 190,354.02

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Solution

The fourth proportional to 545,347.86, 818,065.53 and 190,354.02 is: 285,546.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,347.86 : 818,065.53 = 190,354.02 : x
  2. Step 2: Convert to fraction form
    545,347.86/818,065.53 = 190,354.02/x
  3. Step 3: Cross multiply
    545,347.86x = 818,065.53 × 190,354.02
  4. Step 4: Simplify right side
    545,347.86x = 155,722,062,258.93
  5. Step 5: Solve for x
    x = 155,722,062,258.93/545,347.86
  6. Step 6: Final answer
    x = 285,546.30

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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.