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Finding the Fourth Proportional to 672,618.39, 927,688.49 and 430,923.45

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Solution

The fourth proportional to 672,618.39, 927,688.49 and 430,923.45 is: 594,338.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,618.39 : 927,688.49 = 430,923.45 : x
  2. Step 2: Convert to fraction form
    672,618.39/927,688.49 = 430,923.45/x
  3. Step 3: Cross multiply
    672,618.39x = 927,688.49 × 430,923.45
  4. Step 4: Simplify right side
    672,618.39x = 399,762,722,481.47
  5. Step 5: Solve for x
    x = 399,762,722,481.47/672,618.39
  6. Step 6: Final answer
    x = 594,338.08

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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.