Home / 851,058.80-1,276,588.20-768,114.80

Finding the Fourth Proportional to 851,058.80, 1,276,588.20 and 768,114.80

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Solution

The fourth proportional to 851,058.80, 1,276,588.20 and 768,114.80 is: 1,152,172.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,058.80 : 1,276,588.20 = 768,114.80 : x
  2. Step 2: Convert to fraction form
    851,058.80/1,276,588.20 = 768,114.80/x
  3. Step 3: Cross multiply
    851,058.80x = 1,276,588.20 × 768,114.80
  4. Step 4: Simplify right side
    851,058.80x = 980,566,289,925.36
  5. Step 5: Solve for x
    x = 980,566,289,925.36/851,058.80
  6. Step 6: Final answer
    x = 1,152,172.20

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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.