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Finding the Fourth Proportional to 545,345.49, 817,638.66 and 241,574.70

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Solution

The fourth proportional to 545,345.49, 817,638.66 and 241,574.70 is: 362,193.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,345.49 : 817,638.66 = 241,574.70 : x
  2. Step 2: Convert to fraction form
    545,345.49/817,638.66 = 241,574.70/x
  3. Step 3: Cross multiply
    545,345.49x = 817,638.66 × 241,574.70
  4. Step 4: Simplify right side
    545,345.49x = 197,520,813,997.90
  5. Step 5: Solve for x
    x = 197,520,813,997.90/545,345.49
  6. Step 6: Final answer
    x = 362,193.91

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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.