Home / 1,258,630.35-1,886,681.46-405,074.76

Finding the Fourth Proportional to 1,258,630.35, 1,886,681.46 and 405,074.76

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Solution

The fourth proportional to 1,258,630.35, 1,886,681.46 and 405,074.76 is: 607,205.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,258,630.35 : 1,886,681.46 = 405,074.76 : x
  2. Step 2: Convert to fraction form
    1,258,630.35/1,886,681.46 = 405,074.76/x
  3. Step 3: Cross multiply
    1,258,630.35x = 1,886,681.46 × 405,074.76
  4. Step 4: Simplify right side
    1,258,630.35x = 764,247,039,605.95
  5. Step 5: Solve for x
    x = 764,247,039,605.95/1,258,630.35
  6. Step 6: Final answer
    x = 607,205.32

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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.