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Finding the Fourth Proportional to 295,554.80, 443,332.20 and 290,889.20

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Solution

The fourth proportional to 295,554.80, 443,332.20 and 290,889.20 is: 436,333.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,554.80 : 443,332.20 = 290,889.20 : x
  2. Step 2: Convert to fraction form
    295,554.80/443,332.20 = 290,889.20/x
  3. Step 3: Cross multiply
    295,554.80x = 443,332.20 × 290,889.20
  4. Step 4: Simplify right side
    295,554.80x = 128,960,548,992.24
  5. Step 5: Solve for x
    x = 128,960,548,992.24/295,554.80
  6. Step 6: Final answer
    x = 436,333.80

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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.