Home / 1,186,349.20-1,637,141.67-642,480.58

Finding the Fourth Proportional to 1,186,349.20, 1,637,141.67 and 642,480.58

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Solution

The fourth proportional to 1,186,349.20, 1,637,141.67 and 642,480.58 is: 886,612.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,349.20 : 1,637,141.67 = 642,480.58 : x
  2. Step 2: Convert to fraction form
    1,186,349.20/1,637,141.67 = 642,480.58/x
  3. Step 3: Cross multiply
    1,186,349.20x = 1,637,141.67 × 642,480.58
  4. Step 4: Simplify right side
    1,186,349.20x = 1,051,831,729,683.77
  5. Step 5: Solve for x
    x = 1,051,831,729,683.77/1,186,349.20
  6. Step 6: Final answer
    x = 886,612.25

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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.