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Finding the Fourth Proportional to 403,373.40, 605,060.10 and 359,827.80

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Solution

The fourth proportional to 403,373.40, 605,060.10 and 359,827.80 is: 539,741.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,373.40 : 605,060.10 = 359,827.80 : x
  2. Step 2: Convert to fraction form
    403,373.40/605,060.10 = 359,827.80/x
  3. Step 3: Cross multiply
    403,373.40x = 605,060.10 × 359,827.80
  4. Step 4: Simplify right side
    403,373.40x = 217,717,444,650.78
  5. Step 5: Solve for x
    x = 217,717,444,650.78/403,373.40
  6. Step 6: Final answer
    x = 539,741.70

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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.