Home / 935,971.83-1,291,531.91-528,080.13

Finding the Fourth Proportional to 935,971.83, 1,291,531.91 and 528,080.13

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Solution

The fourth proportional to 935,971.83, 1,291,531.91 and 528,080.13 is: 728,688.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    935,971.83 : 1,291,531.91 = 528,080.13 : x
  2. Step 2: Convert to fraction form
    935,971.83/1,291,531.91 = 528,080.13/x
  3. Step 3: Cross multiply
    935,971.83x = 1,291,531.91 × 528,080.13
  4. Step 4: Simplify right side
    935,971.83x = 682,032,336,291.55
  5. Step 5: Solve for x
    x = 682,032,336,291.55/935,971.83
  6. Step 6: Final answer
    x = 728,688.96

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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.