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Finding the Fourth Proportional to 417,603.09, 626,404.64 and 151,363.86

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Solution

The fourth proportional to 417,603.09, 626,404.64 and 151,363.86 is: 227,045.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,603.09 : 626,404.64 = 151,363.86 : x
  2. Step 2: Convert to fraction form
    417,603.09/626,404.64 = 151,363.86/x
  3. Step 3: Cross multiply
    417,603.09x = 626,404.64 × 151,363.86
  4. Step 4: Simplify right side
    417,603.09x = 94,815,027,263.18
  5. Step 5: Solve for x
    x = 94,815,027,263.18/417,603.09
  6. Step 6: Final answer
    x = 227,045.80

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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.