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Finding the Fourth Proportional to 391,006.36, 589,439.59 and 364,966.36

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Solution

The fourth proportional to 391,006.36, 589,439.59 and 364,966.36 is: 550,184.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,006.36 : 589,439.59 = 364,966.36 : x
  2. Step 2: Convert to fraction form
    391,006.36/589,439.59 = 364,966.36/x
  3. Step 3: Cross multiply
    391,006.36x = 589,439.59 × 364,966.36
  4. Step 4: Simplify right side
    391,006.36x = 215,125,621,602.19
  5. Step 5: Solve for x
    x = 215,125,621,602.19/391,006.36
  6. Step 6: Final answer
    x = 550,184.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.