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Finding the Fourth Proportional to 384,693.30, 577,039.95 and 100,383.30

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Solution

The fourth proportional to 384,693.30, 577,039.95 and 100,383.30 is: 150,574.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,693.30 : 577,039.95 = 100,383.30 : x
  2. Step 2: Convert to fraction form
    384,693.30/577,039.95 = 100,383.30/x
  3. Step 3: Cross multiply
    384,693.30x = 577,039.95 × 100,383.30
  4. Step 4: Simplify right side
    384,693.30x = 57,925,174,412.84
  5. Step 5: Solve for x
    x = 57,925,174,412.84/384,693.30
  6. Step 6: Final answer
    x = 150,574.95

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.