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Finding the Fourth Proportional to 478,566.39, 717,327.30 and 235,574.67

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Solution

The fourth proportional to 478,566.39, 717,327.30 and 235,574.67 is: 353,104.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,566.39 : 717,327.30 = 235,574.67 : x
  2. Step 2: Convert to fraction form
    478,566.39/717,327.30 = 235,574.67/x
  3. Step 3: Cross multiply
    478,566.39x = 717,327.30 × 235,574.67
  4. Step 4: Simplify right side
    478,566.39x = 168,984,141,979.49
  5. Step 5: Solve for x
    x = 168,984,141,979.49/478,566.39
  6. Step 6: Final answer
    x = 353,104.91

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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.