Home / 2,913,643.80-4,370,465.70-919,099.80

Finding the Fourth Proportional to 2,913,643.80, 4,370,465.70 and 919,099.80

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Solution

The fourth proportional to 2,913,643.80, 4,370,465.70 and 919,099.80 is: 1,378,649.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,913,643.80 : 4,370,465.70 = 919,099.80 : x
  2. Step 2: Convert to fraction form
    2,913,643.80/4,370,465.70 = 919,099.80/x
  3. Step 3: Cross multiply
    2,913,643.80x = 4,370,465.70 × 919,099.80
  4. Step 4: Simplify right side
    2,913,643.80x = 4,016,894,150,776.86
  5. Step 5: Solve for x
    x = 4,016,894,150,776.86/2,913,643.80
  6. Step 6: Final answer
    x = 1,378,649.70

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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.