Home / 785,665.78-1,084,183.80-459,009.06

Finding the Fourth Proportional to 785,665.78, 1,084,183.80 and 459,009.06

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Solution

The fourth proportional to 785,665.78, 1,084,183.80 and 459,009.06 is: 633,412.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,665.78 : 1,084,183.80 = 459,009.06 : x
  2. Step 2: Convert to fraction form
    785,665.78/1,084,183.80 = 459,009.06/x
  3. Step 3: Cross multiply
    785,665.78x = 1,084,183.80 × 459,009.06
  4. Step 4: Simplify right side
    785,665.78x = 497,650,186,905.23
  5. Step 5: Solve for x
    x = 497,650,186,905.23/785,665.78
  6. Step 6: Final answer
    x = 633,412.07

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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.