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Finding the Fourth Proportional to 436,281.20, 611,208.40 and 436,281.20

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Solution

The fourth proportional to 436,281.20, 611,208.40 and 436,281.20 is: 611,208.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,281.20 : 611,208.40 = 436,281.20 : x
  2. Step 2: Convert to fraction form
    436,281.20/611,208.40 = 436,281.20/x
  3. Step 3: Cross multiply
    436,281.20x = 611,208.40 × 436,281.20
  4. Step 4: Simplify right side
    436,281.20x = 266,658,734,202.08
  5. Step 5: Solve for x
    x = 266,658,734,202.08/436,281.20
  6. Step 6: Final answer
    x = 611,208.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.