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Finding the Fourth Proportional to 303,590.10, 455,385.15 and 294,842.10

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Solution

The fourth proportional to 303,590.10, 455,385.15 and 294,842.10 is: 442,263.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,590.10 : 455,385.15 = 294,842.10 : x
  2. Step 2: Convert to fraction form
    303,590.10/455,385.15 = 294,842.10/x
  3. Step 3: Cross multiply
    303,590.10x = 455,385.15 × 294,842.10
  4. Step 4: Simplify right side
    303,590.10x = 134,266,713,934.82
  5. Step 5: Solve for x
    x = 134,266,713,934.82/303,590.10
  6. Step 6: Final answer
    x = 442,263.15

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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.