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Finding the Fourth Proportional to 714,537.06, 986,035.60 and 404,432.98

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Solution

The fourth proportional to 714,537.06, 986,035.60 and 404,432.98 is: 558,103.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,537.06 : 986,035.60 = 404,432.98 : x
  2. Step 2: Convert to fraction form
    714,537.06/986,035.60 = 404,432.98/x
  3. Step 3: Cross multiply
    714,537.06x = 986,035.60 × 404,432.98
  4. Step 4: Simplify right side
    714,537.06x = 398,785,316,094.09
  5. Step 5: Solve for x
    x = 398,785,316,094.09/714,537.06
  6. Step 6: Final answer
    x = 558,103.05

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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.