Home / 786,117.60-1,179,176.40-217,497.60

Finding the Fourth Proportional to 786,117.60, 1,179,176.40 and 217,497.60

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Solution

The fourth proportional to 786,117.60, 1,179,176.40 and 217,497.60 is: 326,246.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,117.60 : 1,179,176.40 = 217,497.60 : x
  2. Step 2: Convert to fraction form
    786,117.60/1,179,176.40 = 217,497.60/x
  3. Step 3: Cross multiply
    786,117.60x = 1,179,176.40 × 217,497.60
  4. Step 4: Simplify right side
    786,117.60x = 256,468,036,976.64
  5. Step 5: Solve for x
    x = 256,468,036,976.64/786,117.60
  6. Step 6: Final answer
    x = 326,246.40

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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.