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Finding the Fourth Proportional to 436,277.80, 654,416.70 and 433,167.40

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Solution

The fourth proportional to 436,277.80, 654,416.70 and 433,167.40 is: 649,751.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,277.80 : 654,416.70 = 433,167.40 : x
  2. Step 2: Convert to fraction form
    436,277.80/654,416.70 = 433,167.40/x
  3. Step 3: Cross multiply
    436,277.80x = 654,416.70 × 433,167.40
  4. Step 4: Simplify right side
    436,277.80x = 283,471,980,455.58
  5. Step 5: Solve for x
    x = 283,471,980,455.58/436,277.80
  6. Step 6: Final answer
    x = 649,751.10

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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.