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Finding the Fourth Proportional to 505,701.76, 758,581.83 and 190,161.40

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Solution

The fourth proportional to 505,701.76, 758,581.83 and 190,161.40 is: 285,253.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,701.76 : 758,581.83 = 190,161.40 : x
  2. Step 2: Convert to fraction form
    505,701.76/758,581.83 = 190,161.40/x
  3. Step 3: Cross multiply
    505,701.76x = 758,581.83 × 190,161.40
  4. Step 4: Simplify right side
    505,701.76x = 144,252,982,807.36
  5. Step 5: Solve for x
    x = 144,252,982,807.36/505,701.76
  6. Step 6: Final answer
    x = 285,253.08

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1.5x scale

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.