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Finding the Fourth Proportional to 586,298.28, 879,378.30 and 262,125.48

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Solution

The fourth proportional to 586,298.28, 879,378.30 and 262,125.48 is: 393,157.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,298.28 : 879,378.30 = 262,125.48 : x
  2. Step 2: Convert to fraction form
    586,298.28/879,378.30 = 262,125.48/x
  3. Step 3: Cross multiply
    586,298.28x = 879,378.30 × 262,125.48
  4. Step 4: Simplify right side
    586,298.28x = 230,507,458,989.08
  5. Step 5: Solve for x
    x = 230,507,458,989.08/586,298.28
  6. Step 6: Final answer
    x = 393,157.32

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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.