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Finding the Fourth Proportional to 947,874, 1,421,670.84 and 348,695.04

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Solution

The fourth proportional to 947,874, 1,421,670.84 and 348,695.04 is: 522,991.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,874 : 1,421,670.84 = 348,695.04 : x
  2. Step 2: Convert to fraction form
    947,874/1,421,670.84 = 348,695.04/x
  3. Step 3: Cross multiply
    947,874x = 1,421,670.84 × 348,695.04
  4. Step 4: Simplify right side
    947,874x = 495,729,570,420.63
  5. Step 5: Solve for x
    x = 495,729,570,420.63/947,874
  6. Step 6: Final answer
    x = 522,991.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.