Home / 657,430.02-986,179.86-208,198.35

Finding the Fourth Proportional to 657,430.02, 986,179.86 and 208,198.35

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Solution

The fourth proportional to 657,430.02, 986,179.86 and 208,198.35 is: 312,308.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,430.02 : 986,179.86 = 208,198.35 : x
  2. Step 2: Convert to fraction form
    657,430.02/986,179.86 = 208,198.35/x
  3. Step 3: Cross multiply
    657,430.02x = 986,179.86 × 208,198.35
  4. Step 4: Simplify right side
    657,430.02x = 205,321,019,655.23
  5. Step 5: Solve for x
    x = 205,321,019,655.23/657,430.02
  6. Step 6: Final answer
    x = 312,308.56

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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.