Home / 919,070.07-1,268,294.52-511,170.69

Finding the Fourth Proportional to 919,070.07, 1,268,294.52 and 511,170.69

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Solution

The fourth proportional to 919,070.07, 1,268,294.52 and 511,170.69 is: 705,403.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,070.07 : 1,268,294.52 = 511,170.69 : x
  2. Step 2: Convert to fraction form
    919,070.07/1,268,294.52 = 511,170.69/x
  3. Step 3: Cross multiply
    919,070.07x = 1,268,294.52 × 511,170.69
  4. Step 4: Simplify right side
    919,070.07x = 648,314,984,911.62
  5. Step 5: Solve for x
    x = 648,314,984,911.62/919,070.07
  6. Step 6: Final answer
    x = 705,403.22

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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.