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Finding the Fourth Proportional to 545,913.34, 817,872.49 and 395,781.46

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Solution

The fourth proportional to 545,913.34, 817,872.49 and 395,781.46 is: 592,949.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,913.34 : 817,872.49 = 395,781.46 : x
  2. Step 2: Convert to fraction form
    545,913.34/817,872.49 = 395,781.46/x
  3. Step 3: Cross multiply
    545,913.34x = 817,872.49 × 395,781.46
  4. Step 4: Simplify right side
    545,913.34x = 323,698,768,186.04
  5. Step 5: Solve for x
    x = 323,698,768,186.04/545,913.34
  6. Step 6: Final answer
    x = 592,949.00

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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.