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Finding the Fourth Proportional to 545,021.58, 817,235.85 and 189,940.26

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Solution

The fourth proportional to 545,021.58, 817,235.85 and 189,940.26 is: 284,807.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,021.58 : 817,235.85 = 189,940.26 : x
  2. Step 2: Convert to fraction form
    545,021.58/817,235.85 = 189,940.26/x
  3. Step 3: Cross multiply
    545,021.58x = 817,235.85 × 189,940.26
  4. Step 4: Simplify right side
    545,021.58x = 155,225,989,830.32
  5. Step 5: Solve for x
    x = 155,225,989,830.32/545,021.58
  6. Step 6: Final answer
    x = 284,807.05

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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.