Home / 1,210,428.32-1,670,479.88-866,296.56

Finding the Fourth Proportional to 1,210,428.32, 1,670,479.88 and 866,296.56

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Solution

The fourth proportional to 1,210,428.32, 1,670,479.88 and 866,296.56 is: 1,195,552.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,428.32 : 1,670,479.88 = 866,296.56 : x
  2. Step 2: Convert to fraction form
    1,210,428.32/1,670,479.88 = 866,296.56/x
  3. Step 3: Cross multiply
    1,210,428.32x = 1,670,479.88 × 866,296.56
  4. Step 4: Simplify right side
    1,210,428.32x = 1,447,130,973,593.21
  5. Step 5: Solve for x
    x = 1,447,130,973,593.21/1,210,428.32
  6. Step 6: Final answer
    x = 1,195,552.81

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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.