Home / 935,999.34-1,291,679.40-528,187.86

Finding the Fourth Proportional to 935,999.34, 1,291,679.40 and 528,187.86

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Solution

The fourth proportional to 935,999.34, 1,291,679.40 and 528,187.86 is: 728,899.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    935,999.34 : 1,291,679.40 = 528,187.86 : x
  2. Step 2: Convert to fraction form
    935,999.34/1,291,679.40 = 528,187.86/x
  3. Step 3: Cross multiply
    935,999.34x = 1,291,679.40 × 528,187.86
  4. Step 4: Simplify right side
    935,999.34x = 682,249,378,092.08
  5. Step 5: Solve for x
    x = 682,249,378,092.08/935,999.34
  6. Step 6: Final answer
    x = 728,899.42

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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.