Home / 931,036.70-1,396,555.05-458,644.70

Finding the Fourth Proportional to 931,036.70, 1,396,555.05 and 458,644.70

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Solution

The fourth proportional to 931,036.70, 1,396,555.05 and 458,644.70 is: 687,967.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,036.70 : 1,396,555.05 = 458,644.70 : x
  2. Step 2: Convert to fraction form
    931,036.70/1,396,555.05 = 458,644.70/x
  3. Step 3: Cross multiply
    931,036.70x = 1,396,555.05 × 458,644.70
  4. Step 4: Simplify right side
    931,036.70x = 640,522,571,940.74
  5. Step 5: Solve for x
    x = 640,522,571,940.74/931,036.70
  6. Step 6: Final answer
    x = 687,967.05

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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.