Home / 657,935.10-986,999.85-208,698.30

Finding the Fourth Proportional to 657,935.10, 986,999.85 and 208,698.30

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Solution

The fourth proportional to 657,935.10, 986,999.85 and 208,698.30 is: 313,078.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,935.10 : 986,999.85 = 208,698.30 : x
  2. Step 2: Convert to fraction form
    657,935.10/986,999.85 = 208,698.30/x
  3. Step 3: Cross multiply
    657,935.10x = 986,999.85 × 208,698.30
  4. Step 4: Simplify right side
    657,935.10x = 205,985,190,795.26
  5. Step 5: Solve for x
    x = 205,985,190,795.26/657,935.10
  6. Step 6: Final answer
    x = 313,078.28

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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.