Home / 826,383.79-1,140,409.64-463,807.65

Finding the Fourth Proportional to 826,383.79, 1,140,409.64 and 463,807.65

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Solution

The fourth proportional to 826,383.79, 1,140,409.64 and 463,807.65 is: 640,054.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,383.79 : 1,140,409.64 = 463,807.65 : x
  2. Step 2: Convert to fraction form
    826,383.79/1,140,409.64 = 463,807.65/x
  3. Step 3: Cross multiply
    826,383.79x = 1,140,409.64 × 463,807.65
  4. Step 4: Simplify right side
    826,383.79x = 528,930,716,325.27
  5. Step 5: Solve for x
    x = 528,930,716,325.27/826,383.79
  6. Step 6: Final answer
    x = 640,054.56

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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.