Home / 697,284.81-962,205.35-391,325.13

Finding the Fourth Proportional to 697,284.81, 962,205.35 and 391,325.13

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Solution

The fourth proportional to 697,284.81, 962,205.35 and 391,325.13 is: 540,001.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,284.81 : 962,205.35 = 391,325.13 : x
  2. Step 2: Convert to fraction form
    697,284.81/962,205.35 = 391,325.13/x
  3. Step 3: Cross multiply
    697,284.81x = 962,205.35 × 391,325.13
  4. Step 4: Simplify right side
    697,284.81x = 376,535,131,718.82
  5. Step 5: Solve for x
    x = 376,535,131,718.82/697,284.81
  6. Step 6: Final answer
    x = 540,001.91

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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.