Home / 1,078,115.80-1,615,812.90-545,783.80

Finding the Fourth Proportional to 1,078,115.80, 1,615,812.90 and 545,783.80

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Solution

The fourth proportional to 1,078,115.80, 1,615,812.90 and 545,783.80 is: 817,986.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,115.80 : 1,615,812.90 = 545,783.80 : x
  2. Step 2: Convert to fraction form
    1,078,115.80/1,615,812.90 = 545,783.80/x
  3. Step 3: Cross multiply
    1,078,115.80x = 1,615,812.90 × 545,783.80
  4. Step 4: Simplify right side
    1,078,115.80x = 881,884,504,651.02
  5. Step 5: Solve for x
    x = 881,884,504,651.02/1,078,115.80
  6. Step 6: Final answer
    x = 817,986.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.