Home / 756,132.60-1,134,198.90-631,716.60

Finding the Fourth Proportional to 756,132.60, 1,134,198.90 and 631,716.60

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Solution

The fourth proportional to 756,132.60, 1,134,198.90 and 631,716.60 is: 947,574.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,132.60 : 1,134,198.90 = 631,716.60 : x
  2. Step 2: Convert to fraction form
    756,132.60/1,134,198.90 = 631,716.60/x
  3. Step 3: Cross multiply
    756,132.60x = 1,134,198.90 × 631,716.60
  4. Step 4: Simplify right side
    756,132.60x = 716,492,272,831.74
  5. Step 5: Solve for x
    x = 716,492,272,831.74/756,132.60
  6. Step 6: Final answer
    x = 947,574.90

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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.