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Finding the Fourth Proportional to 586,880.76, 879,990.66 and 187,427.64

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Solution

The fourth proportional to 586,880.76, 879,990.66 and 187,427.64 is: 281,035.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,880.76 : 879,990.66 = 187,427.64 : x
  2. Step 2: Convert to fraction form
    586,880.76/879,990.66 = 187,427.64/x
  3. Step 3: Cross multiply
    586,880.76x = 879,990.66 × 187,427.64
  4. Step 4: Simplify right side
    586,880.76x = 164,934,572,625.84
  5. Step 5: Solve for x
    x = 164,934,572,625.84/586,880.76
  6. Step 6: Final answer
    x = 281,035.92

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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.