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Finding the Fourth Proportional to 598,139.84, 825,338.28 and 356,416.40

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Solution

The fourth proportional to 598,139.84, 825,338.28 and 356,416.40 is: 491,798.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    598,139.84 : 825,338.28 = 356,416.40 : x
  2. Step 2: Convert to fraction form
    598,139.84/825,338.28 = 356,416.40/x
  3. Step 3: Cross multiply
    598,139.84x = 825,338.28 × 356,416.40
  4. Step 4: Simplify right side
    598,139.84x = 294,164,098,539.79
  5. Step 5: Solve for x
    x = 294,164,098,539.79/598,139.84
  6. Step 6: Final answer
    x = 491,798.20

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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.