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Finding the Fourth Proportional to 586,065.12, 879,230.25 and 186,728.64

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Solution

The fourth proportional to 586,065.12, 879,230.25 and 186,728.64 is: 280,135.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,065.12 : 879,230.25 = 186,728.64 : x
  2. Step 2: Convert to fraction form
    586,065.12/879,230.25 = 186,728.64/x
  3. Step 3: Cross multiply
    586,065.12x = 879,230.25 × 186,728.64
  4. Step 4: Simplify right side
    586,065.12x = 164,177,468,829.36
  5. Step 5: Solve for x
    x = 164,177,468,829.36/586,065.12
  6. Step 6: Final answer
    x = 280,135.20

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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.