Home / 1,312,928.33-1,969,392.50-415,000.68

Finding the Fourth Proportional to 1,312,928.33, 1,969,392.50 and 415,000.68

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Solution

The fourth proportional to 1,312,928.33, 1,969,392.50 and 415,000.68 is: 622,501.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,928.33 : 1,969,392.50 = 415,000.68 : x
  2. Step 2: Convert to fraction form
    1,312,928.33/1,969,392.50 = 415,000.68/x
  3. Step 3: Cross multiply
    1,312,928.33x = 1,969,392.50 × 415,000.68
  4. Step 4: Simplify right side
    1,312,928.33x = 817,299,224,611.90
  5. Step 5: Solve for x
    x = 817,299,224,611.90/1,312,928.33
  6. Step 6: Final answer
    x = 622,501.02

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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.