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Finding the Fourth Proportional to 402,466.45, 603,699.68 and 360,476.05

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Solution

The fourth proportional to 402,466.45, 603,699.68 and 360,476.05 is: 540,714.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,466.45 : 603,699.68 = 360,476.05 : x
  2. Step 2: Convert to fraction form
    402,466.45/603,699.68 = 360,476.05/x
  3. Step 3: Cross multiply
    402,466.45x = 603,699.68 × 360,476.05
  4. Step 4: Simplify right side
    402,466.45x = 217,619,274,230.28
  5. Step 5: Solve for x
    x = 217,619,274,230.28/402,466.45
  6. Step 6: Final answer
    x = 540,714.08

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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.