Home / 936,355.78-1,292,169.45-528,543.46

Finding the Fourth Proportional to 936,355.78, 1,292,169.45 and 528,543.46

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Solution

The fourth proportional to 936,355.78, 1,292,169.45 and 528,543.46 is: 729,389.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    936,355.78 : 1,292,169.45 = 528,543.46 : x
  2. Step 2: Convert to fraction form
    936,355.78/1,292,169.45 = 528,543.46/x
  3. Step 3: Cross multiply
    936,355.78x = 1,292,169.45 × 528,543.46
  4. Step 4: Simplify right side
    936,355.78x = 682,967,712,009.30
  5. Step 5: Solve for x
    x = 682,967,712,009.30/936,355.78
  6. Step 6: Final answer
    x = 729,389.11

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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.