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Finding the Fourth Proportional to 697,486.64, 956,242.54 and 684,889.52

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Solution

The fourth proportional to 697,486.64, 956,242.54 and 684,889.52 is: 938,972.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,486.64 : 956,242.54 = 684,889.52 : x
  2. Step 2: Convert to fraction form
    697,486.64/956,242.54 = 684,889.52/x
  3. Step 3: Cross multiply
    697,486.64x = 956,242.54 × 684,889.52
  4. Step 4: Simplify right side
    697,486.64x = 654,920,494,224.18
  5. Step 5: Solve for x
    x = 654,920,494,224.18/697,486.64
  6. Step 6: Final answer
    x = 938,972.10

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.