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Finding the Fourth Proportional to 346,863.80, 520,295.70 and 110,230.40

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Solution

The fourth proportional to 346,863.80, 520,295.70 and 110,230.40 is: 165,345.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,863.80 : 520,295.70 = 110,230.40 : x
  2. Step 2: Convert to fraction form
    346,863.80/520,295.70 = 110,230.40/x
  3. Step 3: Cross multiply
    346,863.80x = 520,295.70 × 110,230.40
  4. Step 4: Simplify right side
    346,863.80x = 57,352,403,129.28
  5. Step 5: Solve for x
    x = 57,352,403,129.28/346,863.80
  6. Step 6: Final answer
    x = 165,345.60

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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.