Home / 1,152,000.30-1,728,000.45-353,405.10

Finding the Fourth Proportional to 1,152,000.30, 1,728,000.45 and 353,405.10

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Solution

The fourth proportional to 1,152,000.30, 1,728,000.45 and 353,405.10 is: 530,107.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,152,000.30 : 1,728,000.45 = 353,405.10 : x
  2. Step 2: Convert to fraction form
    1,152,000.30/1,728,000.45 = 353,405.10/x
  3. Step 3: Cross multiply
    1,152,000.30x = 1,728,000.45 × 353,405.10
  4. Step 4: Simplify right side
    1,152,000.30x = 610,684,171,832.30
  5. Step 5: Solve for x
    x = 610,684,171,832.30/1,152,000.30
  6. Step 6: Final answer
    x = 530,107.65

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Double scale
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Similar ratio
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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.