Home / 1,288,985.68-1,933,011.96-615,039.76

Finding the Fourth Proportional to 1,288,985.68, 1,933,011.96 and 615,039.76

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Solution

The fourth proportional to 1,288,985.68, 1,933,011.96 and 615,039.76 is: 922,337.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,985.68 : 1,933,011.96 = 615,039.76 : x
  2. Step 2: Convert to fraction form
    1,288,985.68/1,933,011.96 = 615,039.76/x
  3. Step 3: Cross multiply
    1,288,985.68x = 1,933,011.96 × 615,039.76
  4. Step 4: Simplify right side
    1,288,985.68x = 1,188,879,211,955.53
  5. Step 5: Solve for x
    x = 1,188,879,211,955.53/1,288,985.68
  6. Step 6: Final answer
    x = 922,337.02

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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.