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Finding the Fourth Proportional to 545,660.91, 818,729.51 and 190,929.51

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Solution

The fourth proportional to 545,660.91, 818,729.51 and 190,929.51 is: 286,477.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,660.91 : 818,729.51 = 190,929.51 : x
  2. Step 2: Convert to fraction form
    545,660.91/818,729.51 = 190,929.51/x
  3. Step 3: Cross multiply
    545,660.91x = 818,729.51 × 190,929.51
  4. Step 4: Simplify right side
    545,660.91x = 156,319,623,212.19
  5. Step 5: Solve for x
    x = 156,319,623,212.19/545,660.91
  6. Step 6: Final answer
    x = 286,477.59

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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.