Home / 1,257,400.70-1,886,101.66-415,952.45

Finding the Fourth Proportional to 1,257,400.70, 1,886,101.66 and 415,952.45

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Solution

The fourth proportional to 1,257,400.70, 1,886,101.66 and 415,952.45 is: 623,928.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,257,400.70 : 1,886,101.66 = 415,952.45 : x
  2. Step 2: Convert to fraction form
    1,257,400.70/1,886,101.66 = 415,952.45/x
  3. Step 3: Cross multiply
    1,257,400.70x = 1,886,101.66 × 415,952.45
  4. Step 4: Simplify right side
    1,257,400.70x = 784,528,599,631.05
  5. Step 5: Solve for x
    x = 784,528,599,631.05/1,257,400.70
  6. Step 6: Final answer
    x = 623,928.87

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Double scale
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Similar ratio
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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.