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Finding the Fourth Proportional to 545,338.86, 818,052.03 and 190,345.02

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Solution

The fourth proportional to 545,338.86, 818,052.03 and 190,345.02 is: 285,532.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,338.86 : 818,052.03 = 190,345.02 : x
  2. Step 2: Convert to fraction form
    545,338.86/818,052.03 = 190,345.02/x
  3. Step 3: Cross multiply
    545,338.86x = 818,052.03 × 190,345.02
  4. Step 4: Simplify right side
    545,338.86x = 155,712,130,011.39
  5. Step 5: Solve for x
    x = 155,712,130,011.39/545,338.86
  6. Step 6: Final answer
    x = 285,532.80

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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.