Home / 906,687.20-1,360,030.80-545,880.80

Finding the Fourth Proportional to 906,687.20, 1,360,030.80 and 545,880.80

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Solution

The fourth proportional to 906,687.20, 1,360,030.80 and 545,880.80 is: 818,821.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    906,687.20 : 1,360,030.80 = 545,880.80 : x
  2. Step 2: Convert to fraction form
    906,687.20/1,360,030.80 = 545,880.80/x
  3. Step 3: Cross multiply
    906,687.20x = 1,360,030.80 × 545,880.80
  4. Step 4: Simplify right side
    906,687.20x = 742,414,701,128.64
  5. Step 5: Solve for x
    x = 742,414,701,128.64/906,687.20
  6. Step 6: Final answer
    x = 818,821.20

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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.