Home / 1,257,637.20-1,886,455.80-416,079.60

Finding the Fourth Proportional to 1,257,637.20, 1,886,455.80 and 416,079.60

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Solution

The fourth proportional to 1,257,637.20, 1,886,455.80 and 416,079.60 is: 624,119.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,257,637.20 : 1,886,455.80 = 416,079.60 : x
  2. Step 2: Convert to fraction form
    1,257,637.20/1,886,455.80 = 416,079.60/x
  3. Step 3: Cross multiply
    1,257,637.20x = 1,886,455.80 × 416,079.60
  4. Step 4: Simplify right side
    1,257,637.20x = 784,915,774,681.68
  5. Step 5: Solve for x
    x = 784,915,774,681.68/1,257,637.20
  6. Step 6: Final answer
    x = 624,119.40

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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.