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Finding the Fourth Proportional to 1,088,936.80, 1,630,294.80 and 976,962.40

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Solution

The fourth proportional to 1,088,936.80, 1,630,294.80 and 976,962.40 is: 1,462,653.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,088,936.80 : 1,630,294.80 = 976,962.40 : x
  2. Step 2: Convert to fraction form
    1,088,936.80/1,630,294.80 = 976,962.40/x
  3. Step 3: Cross multiply
    1,088,936.80x = 1,630,294.80 × 976,962.40
  4. Step 4: Simplify right side
    1,088,936.80x = 1,592,736,720,515.52
  5. Step 5: Solve for x
    x = 1,592,736,720,515.52/1,088,936.80
  6. Step 6: Final answer
    x = 1,462,653.04

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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.