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Finding the Fourth Proportional to 606,411.70, 909,420.77 and 201,495.17

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Solution

The fourth proportional to 606,411.70, 909,420.77 and 201,495.17 is: 302,177.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,411.70 : 909,420.77 = 201,495.17 : x
  2. Step 2: Convert to fraction form
    606,411.70/909,420.77 = 201,495.17/x
  3. Step 3: Cross multiply
    606,411.70x = 909,420.77 × 201,495.17
  4. Step 4: Simplify right side
    606,411.70x = 183,243,891,738.81
  5. Step 5: Solve for x
    x = 183,243,891,738.81/606,411.70
  6. Step 6: Final answer
    x = 302,177.37

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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.