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Finding the Fourth Proportional to 483,332.59, 666,848.80 and 279,309.18

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Solution

The fourth proportional to 483,332.59, 666,848.80 and 279,309.18 is: 385,359.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,332.59 : 666,848.80 = 279,309.18 : x
  2. Step 2: Convert to fraction form
    483,332.59/666,848.80 = 279,309.18/x
  3. Step 3: Cross multiply
    483,332.59x = 666,848.80 × 279,309.18
  4. Step 4: Simplify right side
    483,332.59x = 186,256,991,511.98
  5. Step 5: Solve for x
    x = 186,256,991,511.98/483,332.59
  6. Step 6: Final answer
    x = 385,359.89

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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.