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Finding the Fourth Proportional to 873,792.65, 1,309,009.76 and 535,847.85

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Solution

The fourth proportional to 873,792.65, 1,309,009.76 and 535,847.85 is: 802,742.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,792.65 : 1,309,009.76 = 535,847.85 : x
  2. Step 2: Convert to fraction form
    873,792.65/1,309,009.76 = 535,847.85/x
  3. Step 3: Cross multiply
    873,792.65x = 1,309,009.76 × 535,847.85
  4. Step 4: Simplify right side
    873,792.65x = 701,430,065,525.02
  5. Step 5: Solve for x
    x = 701,430,065,525.02/873,792.65
  6. Step 6: Final answer
    x = 802,742.01

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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.