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Finding the Fourth Proportional to 647,863.61, 893,569.79 and 475,727.54

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Solution

The fourth proportional to 647,863.61, 893,569.79 and 475,727.54 is: 656,150.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,863.61 : 893,569.79 = 475,727.54 : x
  2. Step 2: Convert to fraction form
    647,863.61/893,569.79 = 475,727.54/x
  3. Step 3: Cross multiply
    647,863.61x = 893,569.79 × 475,727.54
  4. Step 4: Simplify right side
    647,863.61x = 425,095,754,736.49
  5. Step 5: Solve for x
    x = 425,095,754,736.49/647,863.61
  6. Step 6: Final answer
    x = 656,150.08

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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.