Home / 1,078,114.80-1,615,811.40-545,782.80

Finding the Fourth Proportional to 1,078,114.80, 1,615,811.40 and 545,782.80

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Solution

The fourth proportional to 1,078,114.80, 1,615,811.40 and 545,782.80 is: 817,985.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,114.80 : 1,615,811.40 = 545,782.80 : x
  2. Step 2: Convert to fraction form
    1,078,114.80/1,615,811.40 = 545,782.80/x
  3. Step 3: Cross multiply
    1,078,114.80x = 1,615,811.40 × 545,782.80
  4. Step 4: Simplify right side
    1,078,114.80x = 881,882,070,163.92
  5. Step 5: Solve for x
    x = 881,882,070,163.92/1,078,114.80
  6. Step 6: Final answer
    x = 817,985.31

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Double scale
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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.