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Finding the Fourth Proportional to 468,095.10, 702,142.65 and 279,138.30

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Solution

The fourth proportional to 468,095.10, 702,142.65 and 279,138.30 is: 418,707.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,095.10 : 702,142.65 = 279,138.30 : x
  2. Step 2: Convert to fraction form
    468,095.10/702,142.65 = 279,138.30/x
  3. Step 3: Cross multiply
    468,095.10x = 702,142.65 × 279,138.30
  4. Step 4: Simplify right side
    468,095.10x = 195,994,905,678.50
  5. Step 5: Solve for x
    x = 195,994,905,678.50/468,095.10
  6. Step 6: Final answer
    x = 418,707.45

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1.5x scale

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.