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Finding the Fourth Proportional to 6,402,776.40, 8,836,593.48 and 3,687,051.60

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Solution

The fourth proportional to 6,402,776.40, 8,836,593.48 and 3,687,051.60 is: 5,088,570.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,402,776.40 : 8,836,593.48 = 3,687,051.60 : x
  2. Step 2: Convert to fraction form
    6,402,776.40/8,836,593.48 = 3,687,051.60/x
  3. Step 3: Cross multiply
    6,402,776.40x = 8,836,593.48 × 3,687,051.60
  4. Step 4: Simplify right side
    6,402,776.40x = 32,580,976,128,983.57
  5. Step 5: Solve for x
    x = 32,580,976,128,983.57/6,402,776.40
  6. Step 6: Final answer
    x = 5,088,570.03

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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.