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Finding the Fourth Proportional to 623,591.32, 859,982.04 and 408,653.32

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Solution

The fourth proportional to 623,591.32, 859,982.04 and 408,653.32 is: 563,565.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,591.32 : 859,982.04 = 408,653.32 : x
  2. Step 2: Convert to fraction form
    623,591.32/859,982.04 = 408,653.32/x
  3. Step 3: Cross multiply
    623,591.32x = 859,982.04 × 408,653.32
  4. Step 4: Simplify right side
    623,591.32x = 351,434,515,786.37
  5. Step 5: Solve for x
    x = 351,434,515,786.37/623,591.32
  6. Step 6: Final answer
    x = 563,565.44

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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.