Home / 677,627.10-935,154.72-405,642.36

Finding the Fourth Proportional to 677,627.10, 935,154.72 and 405,642.36

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Solution

The fourth proportional to 677,627.10, 935,154.72 and 405,642.36 is: 559,804.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,627.10 : 935,154.72 = 405,642.36 : x
  2. Step 2: Convert to fraction form
    677,627.10/935,154.72 = 405,642.36/x
  3. Step 3: Cross multiply
    677,627.10x = 935,154.72 × 405,642.36
  4. Step 4: Simplify right side
    677,627.10x = 379,338,371,092.77
  5. Step 5: Solve for x
    x = 379,338,371,092.77/677,627.10
  6. Step 6: Final answer
    x = 559,804.01

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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.