Home / 1,272,812-1,756,435.60-699,848.16

Finding the Fourth Proportional to 1,272,812, 1,756,435.60 and 699,848.16

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Solution

The fourth proportional to 1,272,812, 1,756,435.60 and 699,848.16 is: 965,765.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,812 : 1,756,435.60 = 699,848.16 : x
  2. Step 2: Convert to fraction form
    1,272,812/1,756,435.60 = 699,848.16/x
  3. Step 3: Cross multiply
    1,272,812x = 1,756,435.60 × 699,848.16
  4. Step 4: Simplify right side
    1,272,812x = 1,229,238,222,818.50
  5. Step 5: Solve for x
    x = 1,229,238,222,818.50/1,272,812
  6. Step 6: Final answer
    x = 965,765.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.