Home / 689,776.08-951,876.86-431,795.28

Finding the Fourth Proportional to 689,776.08, 951,876.86 and 431,795.28

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Solution

The fourth proportional to 689,776.08, 951,876.86 and 431,795.28 is: 595,868.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,776.08 : 951,876.86 = 431,795.28 : x
  2. Step 2: Convert to fraction form
    689,776.08/951,876.86 = 431,795.28/x
  3. Step 3: Cross multiply
    689,776.08x = 951,876.86 × 431,795.28
  4. Step 4: Simplify right side
    689,776.08x = 411,015,935,289.22
  5. Step 5: Solve for x
    x = 411,015,935,289.22/689,776.08
  6. Step 6: Final answer
    x = 595,868.64

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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.