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Finding the Fourth Proportional to 696,857.66, 962,075.81 and 438,955.68

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Solution

The fourth proportional to 696,857.66, 962,075.81 and 438,955.68 is: 606,018.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,857.66 : 962,075.81 = 438,955.68 : x
  2. Step 2: Convert to fraction form
    696,857.66/962,075.81 = 438,955.68/x
  3. Step 3: Cross multiply
    696,857.66x = 962,075.81 × 438,955.68
  4. Step 4: Simplify right side
    696,857.66x = 422,308,646,095.27
  5. Step 5: Solve for x
    x = 422,308,646,095.27/696,857.66
  6. Step 6: Final answer
    x = 606,018.52

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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.