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Finding the Fourth Proportional to 543,784.83, 750,120.70 and 505,297.01

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Solution

The fourth proportional to 543,784.83, 750,120.70 and 505,297.01 is: 697,028.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,784.83 : 750,120.70 = 505,297.01 : x
  2. Step 2: Convert to fraction form
    543,784.83/750,120.70 = 505,297.01/x
  3. Step 3: Cross multiply
    543,784.83x = 750,120.70 × 505,297.01
  4. Step 4: Simplify right side
    543,784.83x = 379,033,746,849.11
  5. Step 5: Solve for x
    x = 379,033,746,849.11/543,784.83
  6. Step 6: Final answer
    x = 697,028.91

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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.