Home / 656,848.20-985,272.30-341,920.20

Finding the Fourth Proportional to 656,848.20, 985,272.30 and 341,920.20

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Solution

The fourth proportional to 656,848.20, 985,272.30 and 341,920.20 is: 512,880.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,848.20 : 985,272.30 = 341,920.20 : x
  2. Step 2: Convert to fraction form
    656,848.20/985,272.30 = 341,920.20/x
  3. Step 3: Cross multiply
    656,848.20x = 985,272.30 × 341,920.20
  4. Step 4: Simplify right side
    656,848.20x = 336,884,501,870.46
  5. Step 5: Solve for x
    x = 336,884,501,870.46/656,848.20
  6. Step 6: Final answer
    x = 512,880.30

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Half scale
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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.