Home / 917,676.40-1,266,429.34-627,895.74

Finding the Fourth Proportional to 917,676.40, 1,266,429.34 and 627,895.74

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Solution

The fourth proportional to 917,676.40, 1,266,429.34 and 627,895.74 is: 866,520.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,676.40 : 1,266,429.34 = 627,895.74 : x
  2. Step 2: Convert to fraction form
    917,676.40/1,266,429.34 = 627,895.74/x
  3. Step 3: Cross multiply
    917,676.40x = 1,266,429.34 × 627,895.74
  4. Step 4: Simplify right side
    917,676.40x = 795,185,587,597.01
  5. Step 5: Solve for x
    x = 795,185,587,597.01/917,676.40
  6. Step 6: Final answer
    x = 866,520.69

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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.