Home / 677,627.29-935,154.98-405,642.56

Finding the Fourth Proportional to 677,627.29, 935,154.98 and 405,642.56

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Solution

The fourth proportional to 677,627.29, 935,154.98 and 405,642.56 is: 559,804.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,627.29 : 935,154.98 = 405,642.56 : x
  2. Step 2: Convert to fraction form
    677,627.29/935,154.98 = 405,642.56/x
  3. Step 3: Cross multiply
    677,627.29x = 935,154.98 × 405,642.56
  4. Step 4: Simplify right side
    677,627.29x = 379,338,656,422.28
  5. Step 5: Solve for x
    x = 379,338,656,422.28/677,627.29
  6. Step 6: Final answer
    x = 559,804.28

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1.5x scale

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.