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Finding the Fourth Proportional to 620,714.34, 929,562.48 and 353,670.71

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Solution

The fourth proportional to 620,714.34, 929,562.48 and 353,670.71 is: 529,646.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,714.34 : 929,562.48 = 353,670.71 : x
  2. Step 2: Convert to fraction form
    620,714.34/929,562.48 = 353,670.71/x
  3. Step 3: Cross multiply
    620,714.34x = 929,562.48 × 353,670.71
  4. Step 4: Simplify right side
    620,714.34x = 328,759,017,643.15
  5. Step 5: Solve for x
    x = 328,759,017,643.15/620,714.34
  6. Step 6: Final answer
    x = 529,646.24

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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.