Home / 2,578,889.10-3,868,333.65-781,683.60

Finding the Fourth Proportional to 2,578,889.10, 3,868,333.65 and 781,683.60

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Solution

The fourth proportional to 2,578,889.10, 3,868,333.65 and 781,683.60 is: 1,172,525.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,578,889.10 : 3,868,333.65 = 781,683.60 : x
  2. Step 2: Convert to fraction form
    2,578,889.10/3,868,333.65 = 781,683.60/x
  3. Step 3: Cross multiply
    2,578,889.10x = 3,868,333.65 × 781,683.60
  4. Step 4: Simplify right side
    2,578,889.10x = 3,023,812,973,533.14
  5. Step 5: Solve for x
    x = 3,023,812,973,533.14/2,578,889.10
  6. Step 6: Final answer
    x = 1,172,525.40

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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.