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Finding the Fourth Proportional to 346,575.80, 519,863.70 and 305,897.60

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Solution

The fourth proportional to 346,575.80, 519,863.70 and 305,897.60 is: 458,846.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,575.80 : 519,863.70 = 305,897.60 : x
  2. Step 2: Convert to fraction form
    346,575.80/519,863.70 = 305,897.60/x
  3. Step 3: Cross multiply
    346,575.80x = 519,863.70 × 305,897.60
  4. Step 4: Simplify right side
    346,575.80x = 159,025,058,157.12
  5. Step 5: Solve for x
    x = 159,025,058,157.12/346,575.80
  6. Step 6: Final answer
    x = 458,846.40

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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.