Home / 935,951.18-1,291,612.88-528,139.45

Finding the Fourth Proportional to 935,951.18, 1,291,612.88 and 528,139.45

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Solution

The fourth proportional to 935,951.18, 1,291,612.88 and 528,139.45 is: 728,832.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    935,951.18 : 1,291,612.88 = 528,139.45 : x
  2. Step 2: Convert to fraction form
    935,951.18/1,291,612.88 = 528,139.45/x
  3. Step 3: Cross multiply
    935,951.18x = 1,291,612.88 × 528,139.45
  4. Step 4: Simplify right side
    935,951.18x = 682,151,706,957.35
  5. Step 5: Solve for x
    x = 682,151,706,957.35/935,951.18
  6. Step 6: Final answer
    x = 728,832.57

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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.