Home / 919,455.68-1,268,553.48-556,763.60

Finding the Fourth Proportional to 919,455.68, 1,268,553.48 and 556,763.60

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Solution

The fourth proportional to 919,455.68, 1,268,553.48 and 556,763.60 is: 768,154.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,455.68 : 1,268,553.48 = 556,763.60 : x
  2. Step 2: Convert to fraction form
    919,455.68/1,268,553.48 = 556,763.60/x
  3. Step 3: Cross multiply
    919,455.68x = 1,268,553.48 × 556,763.60
  4. Step 4: Simplify right side
    919,455.68x = 706,284,402,317.33
  5. Step 5: Solve for x
    x = 706,284,402,317.33/919,455.68
  6. Step 6: Final answer
    x = 768,154.92

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.