Home / 1,186,368.53-1,637,180.34-642,491.87

Finding the Fourth Proportional to 1,186,368.53, 1,637,180.34 and 642,491.87

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Solution

The fourth proportional to 1,186,368.53, 1,637,180.34 and 642,491.87 is: 886,634.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,368.53 : 1,637,180.34 = 642,491.87 : x
  2. Step 2: Convert to fraction form
    1,186,368.53/1,637,180.34 = 642,491.87/x
  3. Step 3: Cross multiply
    1,186,368.53x = 1,637,180.34 × 642,491.87
  4. Step 4: Simplify right side
    1,186,368.53x = 1,051,875,047,578.59
  5. Step 5: Solve for x
    x = 1,051,875,047,578.59/1,186,368.53
  6. Step 6: Final answer
    x = 886,634.32

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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.