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Finding the Fourth Proportional to 704,522.54, 972,175.64 and 398,622.06

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Solution

The fourth proportional to 704,522.54, 972,175.64 and 398,622.06 is: 550,061.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,522.54 : 972,175.64 = 398,622.06 : x
  2. Step 2: Convert to fraction form
    704,522.54/972,175.64 = 398,622.06/x
  3. Step 3: Cross multiply
    704,522.54x = 972,175.64 × 398,622.06
  4. Step 4: Simplify right side
    704,522.54x = 387,530,654,305.51
  5. Step 5: Solve for x
    x = 387,530,654,305.51/704,522.54
  6. Step 6: Final answer
    x = 550,061.40

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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.