Home / 935,636.51-1,291,177.48-505,915.61

Finding the Fourth Proportional to 935,636.51, 1,291,177.48 and 505,915.61

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Solution

The fourth proportional to 935,636.51, 1,291,177.48 and 505,915.61 is: 698,163.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    935,636.51 : 1,291,177.48 = 505,915.61 : x
  2. Step 2: Convert to fraction form
    935,636.51/1,291,177.48 = 505,915.61/x
  3. Step 3: Cross multiply
    935,636.51x = 1,291,177.48 × 505,915.61
  4. Step 4: Simplify right side
    935,636.51x = 653,226,842,412.46
  5. Step 5: Solve for x
    x = 653,226,842,412.46/935,636.51
  6. Step 6: Final answer
    x = 698,163.05

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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.