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Finding the Fourth Proportional to 521,653.80, 784,230.30 and 444,671.40

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Solution

The fourth proportional to 521,653.80, 784,230.30 and 444,671.40 is: 668,498.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,653.80 : 784,230.30 = 444,671.40 : x
  2. Step 2: Convert to fraction form
    521,653.80/784,230.30 = 444,671.40/x
  3. Step 3: Cross multiply
    521,653.80x = 784,230.30 × 444,671.40
  4. Step 4: Simplify right side
    521,653.80x = 348,724,785,423.42
  5. Step 5: Solve for x
    x = 348,724,785,423.42/521,653.80
  6. Step 6: Final answer
    x = 668,498.50

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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.