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Finding the Fourth Proportional to 549,976.40, 824,964.60 and 483,491.60

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Solution

The fourth proportional to 549,976.40, 824,964.60 and 483,491.60 is: 725,237.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,976.40 : 824,964.60 = 483,491.60 : x
  2. Step 2: Convert to fraction form
    549,976.40/824,964.60 = 483,491.60/x
  3. Step 3: Cross multiply
    549,976.40x = 824,964.60 × 483,491.60
  4. Step 4: Simplify right side
    549,976.40x = 398,863,454,397.36
  5. Step 5: Solve for x
    x = 398,863,454,397.36/549,976.40
  6. Step 6: Final answer
    x = 725,237.40

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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.