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Finding the Fourth Proportional to 508,043.77, 700,940.86 and 293,155.63

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Solution

The fourth proportional to 508,043.77, 700,940.86 and 293,155.63 is: 404,462.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,043.77 : 700,940.86 = 293,155.63 : x
  2. Step 2: Convert to fraction form
    508,043.77/700,940.86 = 293,155.63/x
  3. Step 3: Cross multiply
    508,043.77x = 700,940.86 × 293,155.63
  4. Step 4: Simplify right side
    508,043.77x = 205,484,759,406.04
  5. Step 5: Solve for x
    x = 205,484,759,406.04/508,043.77
  6. Step 6: Final answer
    x = 404,462.71

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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.