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Finding the Fourth Proportional to 552,425.40, 774,970.20 and 552,425.40

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Solution

The fourth proportional to 552,425.40, 774,970.20 and 552,425.40 is: 774,970.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,425.40 : 774,970.20 = 552,425.40 : x
  2. Step 2: Convert to fraction form
    552,425.40/774,970.20 = 552,425.40/x
  3. Step 3: Cross multiply
    552,425.40x = 774,970.20 × 552,425.40
  4. Step 4: Simplify right side
    552,425.40x = 428,113,222,723.08
  5. Step 5: Solve for x
    x = 428,113,222,723.08/552,425.40
  6. Step 6: Final answer
    x = 774,970.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.