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Finding the Fourth Proportional to 1,073,269.80, 1,609,904.70 and 775,837.80

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Solution

The fourth proportional to 1,073,269.80, 1,609,904.70 and 775,837.80 is: 1,163,756.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,073,269.80 : 1,609,904.70 = 775,837.80 : x
  2. Step 2: Convert to fraction form
    1,073,269.80/1,609,904.70 = 775,837.80/x
  3. Step 3: Cross multiply
    1,073,269.80x = 1,609,904.70 × 775,837.80
  4. Step 4: Simplify right side
    1,073,269.80x = 1,249,024,920,657.66
  5. Step 5: Solve for x
    x = 1,249,024,920,657.66/1,073,269.80
  6. Step 6: Final answer
    x = 1,163,756.70

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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.