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Finding the Fourth Proportional to 483,464.40, 725,196.60 and 438,363.60

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Solution

The fourth proportional to 483,464.40, 725,196.60 and 438,363.60 is: 657,545.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,464.40 : 725,196.60 = 438,363.60 : x
  2. Step 2: Convert to fraction form
    483,464.40/725,196.60 = 438,363.60/x
  3. Step 3: Cross multiply
    483,464.40x = 725,196.60 × 438,363.60
  4. Step 4: Simplify right side
    483,464.40x = 317,899,792,283.76
  5. Step 5: Solve for x
    x = 317,899,792,283.76/483,464.40
  6. Step 6: Final answer
    x = 657,545.40

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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.