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Finding the Fourth Proportional to 552,075.16, 762,444.56 and 491,894.79

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Solution

The fourth proportional to 552,075.16, 762,444.56 and 491,894.79 is: 679,332.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,075.16 : 762,444.56 = 491,894.79 : x
  2. Step 2: Convert to fraction form
    552,075.16/762,444.56 = 491,894.79/x
  3. Step 3: Cross multiply
    552,075.16x = 762,444.56 × 491,894.79
  4. Step 4: Simplify right side
    552,075.16x = 375,042,504,095.42
  5. Step 5: Solve for x
    x = 375,042,504,095.42/552,075.16
  6. Step 6: Final answer
    x = 679,332.33

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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.