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Finding the Fourth Proportional to 887,751.77, 1,225,095.03 and 505,781.28

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Solution

The fourth proportional to 887,751.77, 1,225,095.03 and 505,781.28 is: 697,976.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,751.77 : 1,225,095.03 = 505,781.28 : x
  2. Step 2: Convert to fraction form
    887,751.77/1,225,095.03 = 505,781.28/x
  3. Step 3: Cross multiply
    887,751.77x = 1,225,095.03 × 505,781.28
  4. Step 4: Simplify right side
    887,751.77x = 619,630,132,395.04
  5. Step 5: Solve for x
    x = 619,630,132,395.04/887,751.77
  6. Step 6: Final answer
    x = 697,976.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.