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Finding the Fourth Proportional to 530,399.64, 795,041.46 and 260,154.12

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Solution

The fourth proportional to 530,399.64, 795,041.46 and 260,154.12 is: 389,957.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,399.64 : 795,041.46 = 260,154.12 : x
  2. Step 2: Convert to fraction form
    530,399.64/795,041.46 = 260,154.12/x
  3. Step 3: Cross multiply
    530,399.64x = 795,041.46 × 260,154.12
  4. Step 4: Simplify right side
    530,399.64x = 206,833,311,389.82
  5. Step 5: Solve for x
    x = 206,833,311,389.82/530,399.64
  6. Step 6: Final answer
    x = 389,957.49

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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.