Home / 936,507.82-1,292,439.32-528,678.76

Finding the Fourth Proportional to 936,507.82, 1,292,439.32 and 528,678.76

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Solution

The fourth proportional to 936,507.82, 1,292,439.32 and 528,678.76 is: 729,609.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    936,507.82 : 1,292,439.32 = 528,678.76 : x
  2. Step 2: Convert to fraction form
    936,507.82/1,292,439.32 = 528,678.76/x
  3. Step 3: Cross multiply
    936,507.82x = 1,292,439.32 × 528,678.76
  4. Step 4: Simplify right side
    936,507.82x = 683,285,214,429.45
  5. Step 5: Solve for x
    x = 683,285,214,429.45/936,507.82
  6. Step 6: Final answer
    x = 729,609.73

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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.