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Finding the Fourth Proportional to 478,313.22, 716,594.85 and 225,802.38

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Solution

The fourth proportional to 478,313.22, 716,594.85 and 225,802.38 is: 338,290.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,313.22 : 716,594.85 = 225,802.38 : x
  2. Step 2: Convert to fraction form
    478,313.22/716,594.85 = 225,802.38/x
  3. Step 3: Cross multiply
    478,313.22x = 716,594.85 × 225,802.38
  4. Step 4: Simplify right side
    478,313.22x = 161,808,822,625.74
  5. Step 5: Solve for x
    x = 161,808,822,625.74/478,313.22
  6. Step 6: Final answer
    x = 338,290.51

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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.