Home / 711,249.86-1,065,354.60-575,728.76

Finding the Fourth Proportional to 711,249.86, 1,065,354.60 and 575,728.76

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Solution

The fourth proportional to 711,249.86, 1,065,354.60 and 575,728.76 is: 862,362.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,249.86 : 1,065,354.60 = 575,728.76 : x
  2. Step 2: Convert to fraction form
    711,249.86/1,065,354.60 = 575,728.76/x
  3. Step 3: Cross multiply
    711,249.86x = 1,065,354.60 × 575,728.76
  4. Step 4: Simplify right side
    711,249.86x = 613,355,282,818.30
  5. Step 5: Solve for x
    x = 613,355,282,818.30/711,249.86
  6. Step 6: Final answer
    x = 862,362.61

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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.