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Finding the Fourth Proportional to 666,324.90, 919,550.10 and 364,518.90

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Solution

The fourth proportional to 666,324.90, 919,550.10 and 364,518.90 is: 503,047.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,324.90 : 919,550.10 = 364,518.90 : x
  2. Step 2: Convert to fraction form
    666,324.90/919,550.10 = 364,518.90/x
  3. Step 3: Cross multiply
    666,324.90x = 919,550.10 × 364,518.90
  4. Step 4: Simplify right side
    666,324.90x = 335,193,390,946.89
  5. Step 5: Solve for x
    x = 335,193,390,946.89/666,324.90
  6. Step 6: Final answer
    x = 503,047.97

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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.