Home / 646,583.40-969,875.20-197,306.64

Finding the Fourth Proportional to 646,583.40, 969,875.20 and 197,306.64

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Solution

The fourth proportional to 646,583.40, 969,875.20 and 197,306.64 is: 295,959.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,583.40 : 969,875.20 = 197,306.64 : x
  2. Step 2: Convert to fraction form
    646,583.40/969,875.20 = 197,306.64/x
  3. Step 3: Cross multiply
    646,583.40x = 969,875.20 × 197,306.64
  4. Step 4: Simplify right side
    646,583.40x = 191,362,816,931.33
  5. Step 5: Solve for x
    x = 191,362,816,931.33/646,583.40
  6. Step 6: Final answer
    x = 295,959.99

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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.