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Finding the Fourth Proportional to 355,931.40, 533,897.10 and 335,656.20

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Solution

The fourth proportional to 355,931.40, 533,897.10 and 335,656.20 is: 503,484.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,931.40 : 533,897.10 = 335,656.20 : x
  2. Step 2: Convert to fraction form
    355,931.40/533,897.10 = 335,656.20/x
  3. Step 3: Cross multiply
    355,931.40x = 533,897.10 × 335,656.20
  4. Step 4: Simplify right side
    355,931.40x = 179,205,871,777.02
  5. Step 5: Solve for x
    x = 179,205,871,777.02/355,931.40
  6. Step 6: Final answer
    x = 503,484.30

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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.