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Finding the Fourth Proportional to 346,437.20, 520,174.20 and 241,720.40

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Solution

The fourth proportional to 346,437.20, 520,174.20 and 241,720.40 is: 362,942.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,437.20 : 520,174.20 = 241,720.40 : x
  2. Step 2: Convert to fraction form
    346,437.20/520,174.20 = 241,720.40/x
  3. Step 3: Cross multiply
    346,437.20x = 520,174.20 × 241,720.40
  4. Step 4: Simplify right side
    346,437.20x = 125,736,715,693.68
  5. Step 5: Solve for x
    x = 125,736,715,693.68/346,437.20
  6. Step 6: Final answer
    x = 362,942.30

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1.5x scale

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.