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Finding the Fourth Proportional to 346,812.30, 520,218.45 and 110,178.90

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Solution

The fourth proportional to 346,812.30, 520,218.45 and 110,178.90 is: 165,268.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,812.30 : 520,218.45 = 110,178.90 : x
  2. Step 2: Convert to fraction form
    346,812.30/520,218.45 = 110,178.90/x
  3. Step 3: Cross multiply
    346,812.30x = 520,218.45 × 110,178.90
  4. Step 4: Simplify right side
    346,812.30x = 57,317,096,580.71
  5. Step 5: Solve for x
    x = 57,317,096,580.71/346,812.30
  6. Step 6: Final answer
    x = 165,268.35

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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.