Home / 1,186,836.51-1,637,835.08-642,976.10

Finding the Fourth Proportional to 1,186,836.51, 1,637,835.08 and 642,976.10

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Solution

The fourth proportional to 1,186,836.51, 1,637,835.08 and 642,976.10 is: 887,307.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,836.51 : 1,637,835.08 = 642,976.10 : x
  2. Step 2: Convert to fraction form
    1,186,836.51/1,637,835.08 = 642,976.10/x
  3. Step 3: Cross multiply
    1,186,836.51x = 1,637,835.08 × 642,976.10
  4. Step 4: Simplify right side
    1,186,836.51x = 1,053,088,800,777.53
  5. Step 5: Solve for x
    x = 1,053,088,800,777.53/1,186,836.51
  6. Step 6: Final answer
    x = 887,307.39

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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.