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Finding the Fourth Proportional to 875,963.60, 1,313,216.40 and 370,912.40

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Solution

The fourth proportional to 875,963.60, 1,313,216.40 and 370,912.40 is: 556,059.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,963.60 : 1,313,216.40 = 370,912.40 : x
  2. Step 2: Convert to fraction form
    875,963.60/1,313,216.40 = 370,912.40/x
  3. Step 3: Cross multiply
    875,963.60x = 1,313,216.40 × 370,912.40
  4. Step 4: Simplify right side
    875,963.60x = 487,088,246,643.36
  5. Step 5: Solve for x
    x = 487,088,246,643.36/875,963.60
  6. Step 6: Final answer
    x = 556,059.92

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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.