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Finding the Fourth Proportional to 586,388.28, 809,292.14 and 328,363.48

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Solution

The fourth proportional to 586,388.28, 809,292.14 and 328,363.48 is: 453,184.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,388.28 : 809,292.14 = 328,363.48 : x
  2. Step 2: Convert to fraction form
    586,388.28/809,292.14 = 328,363.48/x
  3. Step 3: Cross multiply
    586,388.28x = 809,292.14 × 328,363.48
  4. Step 4: Simplify right side
    586,388.28x = 265,741,983,427.05
  5. Step 5: Solve for x
    x = 265,741,983,427.05/586,388.28
  6. Step 6: Final answer
    x = 453,184.34

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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.