Home / 837,114.80-1,255,672.20-553,679.60

Finding the Fourth Proportional to 837,114.80, 1,255,672.20 and 553,679.60

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Solution

The fourth proportional to 837,114.80, 1,255,672.20 and 553,679.60 is: 830,519.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    837,114.80 : 1,255,672.20 = 553,679.60 : x
  2. Step 2: Convert to fraction form
    837,114.80/1,255,672.20 = 553,679.60/x
  3. Step 3: Cross multiply
    837,114.80x = 1,255,672.20 × 553,679.60
  4. Step 4: Simplify right side
    837,114.80x = 695,240,081,427.12
  5. Step 5: Solve for x
    x = 695,240,081,427.12/837,114.80
  6. Step 6: Final answer
    x = 830,519.40

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Double scale
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Similar ratio
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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.