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Finding the Fourth Proportional to 999,784.40, 1,379,684.04 and 547,066.32

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Solution

The fourth proportional to 999,784.40, 1,379,684.04 and 547,066.32 is: 754,941.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,784.40 : 1,379,684.04 = 547,066.32 : x
  2. Step 2: Convert to fraction form
    999,784.40/1,379,684.04 = 547,066.32/x
  3. Step 3: Cross multiply
    999,784.40x = 1,379,684.04 × 547,066.32
  4. Step 4: Simplify right side
    999,784.40x = 754,778,670,525.53
  5. Step 5: Solve for x
    x = 754,778,670,525.53/999,784.40
  6. Step 6: Final answer
    x = 754,941.44

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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.