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Finding the Fourth Proportional to 536,429.20, 804,643.80 and 162,452.20

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Solution

The fourth proportional to 536,429.20, 804,643.80 and 162,452.20 is: 243,678.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,429.20 : 804,643.80 = 162,452.20 : x
  2. Step 2: Convert to fraction form
    536,429.20/804,643.80 = 162,452.20/x
  3. Step 3: Cross multiply
    536,429.20x = 804,643.80 × 162,452.20
  4. Step 4: Simplify right side
    536,429.20x = 130,716,155,526.36
  5. Step 5: Solve for x
    x = 130,716,155,526.36/536,429.20
  6. Step 6: Final answer
    x = 243,678.30

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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.