Home / 881,776.72-1,320,421.56-581,345.78

Finding the Fourth Proportional to 881,776.72, 1,320,421.56 and 581,345.78

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Solution

The fourth proportional to 881,776.72, 1,320,421.56 and 581,345.78 is: 870,539.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,776.72 : 1,320,421.56 = 581,345.78 : x
  2. Step 2: Convert to fraction form
    881,776.72/1,320,421.56 = 581,345.78/x
  3. Step 3: Cross multiply
    881,776.72x = 1,320,421.56 × 581,345.78
  4. Step 4: Simplify right side
    881,776.72x = 767,621,501,727.02
  5. Step 5: Solve for x
    x = 767,621,501,727.02/881,776.72
  6. Step 6: Final answer
    x = 870,539.55

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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.