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Finding the Fourth Proportional to 714,245.00, 985,670.10 and 391,985.08

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Solution

The fourth proportional to 714,245.00, 985,670.10 and 391,985.08 is: 540,946.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,245.00 : 985,670.10 = 391,985.08 : x
  2. Step 2: Convert to fraction form
    714,245.00/985,670.10 = 391,985.08/x
  3. Step 3: Cross multiply
    714,245.00x = 985,670.10 × 391,985.08
  4. Step 4: Simplify right side
    714,245.00x = 386,367,970,537.93
  5. Step 5: Solve for x
    x = 386,367,970,537.93/714,245.00
  6. Step 6: Final answer
    x = 540,946.00

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.