Home / 991,006.84-1,367,614.74-561,280.60

Finding the Fourth Proportional to 991,006.84, 1,367,614.74 and 561,280.60

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Solution

The fourth proportional to 991,006.84, 1,367,614.74 and 561,280.60 is: 774,581.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,006.84 : 1,367,614.74 = 561,280.60 : x
  2. Step 2: Convert to fraction form
    991,006.84/1,367,614.74 = 561,280.60/x
  3. Step 3: Cross multiply
    991,006.84x = 1,367,614.74 × 561,280.60
  4. Step 4: Simplify right side
    991,006.84x = 767,615,621,836.04
  5. Step 5: Solve for x
    x = 767,615,621,836.04/991,006.84
  6. Step 6: Final answer
    x = 774,581.56

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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.