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Finding the Fourth Proportional to 478,386.95, 717,754.64 and 222,337.71

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Solution

The fourth proportional to 478,386.95, 717,754.64 and 222,337.71 is: 333,587.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,386.95 : 717,754.64 = 222,337.71 : x
  2. Step 2: Convert to fraction form
    478,386.95/717,754.64 = 222,337.71/x
  3. Step 3: Cross multiply
    478,386.95x = 717,754.64 × 222,337.71
  4. Step 4: Simplify right side
    478,386.95x = 159,583,921,887.79
  5. Step 5: Solve for x
    x = 159,583,921,887.79/478,386.95
  6. Step 6: Final answer
    x = 333,587.54

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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.