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Finding the Fourth Proportional to 876,851.60, 1,315,277.40 and 451,698.80

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Solution

The fourth proportional to 876,851.60, 1,315,277.40 and 451,698.80 is: 677,548.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,851.60 : 1,315,277.40 = 451,698.80 : x
  2. Step 2: Convert to fraction form
    876,851.60/1,315,277.40 = 451,698.80/x
  3. Step 3: Cross multiply
    876,851.60x = 1,315,277.40 × 451,698.80
  4. Step 4: Simplify right side
    876,851.60x = 594,109,223,247.12
  5. Step 5: Solve for x
    x = 594,109,223,247.12/876,851.60
  6. Step 6: Final answer
    x = 677,548.20

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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.