Home / 860,209.88-1,185,339.02-665,434.44

Finding the Fourth Proportional to 860,209.88, 1,185,339.02 and 665,434.44

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Solution

The fourth proportional to 860,209.88, 1,185,339.02 and 665,434.44 is: 916,945.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,209.88 : 1,185,339.02 = 665,434.44 : x
  2. Step 2: Convert to fraction form
    860,209.88/1,185,339.02 = 665,434.44/x
  3. Step 3: Cross multiply
    860,209.88x = 1,185,339.02 × 665,434.44
  4. Step 4: Simplify right side
    860,209.88x = 788,765,403,656.68
  5. Step 5: Solve for x
    x = 788,765,403,656.68/860,209.88
  6. Step 6: Final answer
    x = 916,945.30

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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.