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Finding the Fourth Proportional to 672,639.04, 927,716.70 and 430,944.04

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Solution

The fourth proportional to 672,639.04, 927,716.70 and 430,944.04 is: 594,366.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,639.04 : 927,716.70 = 430,944.04 : x
  2. Step 2: Convert to fraction form
    672,639.04/927,716.70 = 430,944.04/x
  3. Step 3: Cross multiply
    672,639.04x = 927,716.70 × 430,944.04
  4. Step 4: Simplify right side
    672,639.04x = 399,793,982,673.47
  5. Step 5: Solve for x
    x = 399,793,982,673.47/672,639.04
  6. Step 6: Final answer
    x = 594,366.31

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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.