Home / 863,355.02-1,191,437.87-476,185.55

Finding the Fourth Proportional to 863,355.02, 1,191,437.87 and 476,185.55

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Solution

The fourth proportional to 863,355.02, 1,191,437.87 and 476,185.55 is: 657,140.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,355.02 : 1,191,437.87 = 476,185.55 : x
  2. Step 2: Convert to fraction form
    863,355.02/1,191,437.87 = 476,185.55/x
  3. Step 3: Cross multiply
    863,355.02x = 1,191,437.87 × 476,185.55
  4. Step 4: Simplify right side
    863,355.02x = 567,345,489,078.66
  5. Step 5: Solve for x
    x = 567,345,489,078.66/863,355.02
  6. Step 6: Final answer
    x = 657,140.43

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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.