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Finding the Fourth Proportional to 484,048.10, 668,285.24 and 312,027.19

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Solution

The fourth proportional to 484,048.10, 668,285.24 and 312,027.19 is: 430,790.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,048.10 : 668,285.24 = 312,027.19 : x
  2. Step 2: Convert to fraction form
    484,048.10/668,285.24 = 312,027.19/x
  3. Step 3: Cross multiply
    484,048.10x = 668,285.24 × 312,027.19
  4. Step 4: Simplify right side
    484,048.10x = 208,523,162,324.83
  5. Step 5: Solve for x
    x = 208,523,162,324.83/484,048.10
  6. Step 6: Final answer
    x = 430,790.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.