Home / 993,386.36-1,371,359.13-666,582.44

Finding the Fourth Proportional to 993,386.36, 1,371,359.13 and 666,582.44

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Solution

The fourth proportional to 993,386.36, 1,371,359.13 and 666,582.44 is: 920,209.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,386.36 : 1,371,359.13 = 666,582.44 : x
  2. Step 2: Convert to fraction form
    993,386.36/1,371,359.13 = 666,582.44/x
  3. Step 3: Cross multiply
    993,386.36x = 1,371,359.13 × 666,582.44
  4. Step 4: Simplify right side
    993,386.36x = 914,123,915,777.16
  5. Step 5: Solve for x
    x = 914,123,915,777.16/993,386.36
  6. Step 6: Final answer
    x = 920,209.86

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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.