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Finding the Fourth Proportional to 1,584,838.80, 2,379,007.80 and 986,475.60

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Solution

The fourth proportional to 1,584,838.80, 2,379,007.80 and 986,475.60 is: 1,480,802.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,584,838.80 : 2,379,007.80 = 986,475.60 : x
  2. Step 2: Convert to fraction form
    1,584,838.80/2,379,007.80 = 986,475.60/x
  3. Step 3: Cross multiply
    1,584,838.80x = 2,379,007.80 × 986,475.60
  4. Step 4: Simplify right side
    1,584,838.80x = 2,346,833,146,909.68
  5. Step 5: Solve for x
    x = 2,346,833,146,909.68/1,584,838.80
  6. Step 6: Final answer
    x = 1,480,802.43

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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.