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Finding the Fourth Proportional to 456,300.20, 683,138.10 and 279,153.20

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Solution

The fourth proportional to 456,300.20, 683,138.10 and 279,153.20 is: 417,927.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,300.20 : 683,138.10 = 279,153.20 : x
  2. Step 2: Convert to fraction form
    456,300.20/683,138.10 = 279,153.20/x
  3. Step 3: Cross multiply
    456,300.20x = 683,138.10 × 279,153.20
  4. Step 4: Simplify right side
    456,300.20x = 190,700,186,656.92
  5. Step 5: Solve for x
    x = 190,700,186,656.92/456,300.20
  6. Step 6: Final answer
    x = 417,927.03

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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.