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Finding the Fourth Proportional to 1,088.88, 1,630.08 and 1,000.32

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Solution

The fourth proportional to 1,088.88, 1,630.08 and 1,000.32 is: 1,497.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,088.88 : 1,630.08 = 1,000.32 : x
  2. Step 2: Convert to fraction form
    1,088.88/1,630.08 = 1,000.32/x
  3. Step 3: Cross multiply
    1,088.88x = 1,630.08 × 1,000.32
  4. Step 4: Simplify right side
    1,088.88x = 1,630,601.63
  5. Step 5: Solve for x
    x = 1,630,601.63/1,088.88
  6. Step 6: Final answer
    x = 1,497.50

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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.