Home / 648,117.70-972,176.55-396,175.30

Finding the Fourth Proportional to 648,117.70, 972,176.55 and 396,175.30

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Solution

The fourth proportional to 648,117.70, 972,176.55 and 396,175.30 is: 594,262.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,117.70 : 972,176.55 = 396,175.30 : x
  2. Step 2: Convert to fraction form
    648,117.70/972,176.55 = 396,175.30/x
  3. Step 3: Cross multiply
    648,117.70x = 972,176.55 × 396,175.30
  4. Step 4: Simplify right side
    648,117.70x = 385,152,336,349.22
  5. Step 5: Solve for x
    x = 385,152,336,349.22/648,117.70
  6. Step 6: Final answer
    x = 594,262.95

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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.