Home / 648,152.20-972,228.30-543,176.20

Finding the Fourth Proportional to 648,152.20, 972,228.30 and 543,176.20

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Solution

The fourth proportional to 648,152.20, 972,228.30 and 543,176.20 is: 814,764.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,152.20 : 972,228.30 = 543,176.20 : x
  2. Step 2: Convert to fraction form
    648,152.20/972,228.30 = 543,176.20/x
  3. Step 3: Cross multiply
    648,152.20x = 972,228.30 × 543,176.20
  4. Step 4: Simplify right side
    648,152.20x = 528,091,273,526.46
  5. Step 5: Solve for x
    x = 528,091,273,526.46/648,152.20
  6. Step 6: Final answer
    x = 814,764.30

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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.