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Finding the Fourth Proportional to 755,608.88, 1,042,783.80 and 416,082.80

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Solution

The fourth proportional to 755,608.88, 1,042,783.80 and 416,082.80 is: 574,218.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,608.88 : 1,042,783.80 = 416,082.80 : x
  2. Step 2: Convert to fraction form
    755,608.88/1,042,783.80 = 416,082.80/x
  3. Step 3: Cross multiply
    755,608.88x = 1,042,783.80 × 416,082.80
  4. Step 4: Simplify right side
    755,608.88x = 433,884,403,298.64
  5. Step 5: Solve for x
    x = 433,884,403,298.64/755,608.88
  6. Step 6: Final answer
    x = 574,218.24

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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.