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Finding the Fourth Proportional to 586,528.80, 879,436.80 and 231,133.20

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Solution

The fourth proportional to 586,528.80, 879,436.80 and 231,133.20 is: 346,559.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,528.80 : 879,436.80 = 231,133.20 : x
  2. Step 2: Convert to fraction form
    586,528.80/879,436.80 = 231,133.20/x
  3. Step 3: Cross multiply
    586,528.80x = 879,436.80 × 231,133.20
  4. Step 4: Simplify right side
    586,528.80x = 203,267,041,781.76
  5. Step 5: Solve for x
    x = 203,267,041,781.76/586,528.80
  6. Step 6: Final answer
    x = 346,559.35

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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.