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Finding the Fourth Proportional to 605,873.60, 908,810.40 and 512,561.60

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Solution

The fourth proportional to 605,873.60, 908,810.40 and 512,561.60 is: 768,842.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,873.60 : 908,810.40 = 512,561.60 : x
  2. Step 2: Convert to fraction form
    605,873.60/908,810.40 = 512,561.60/x
  3. Step 3: Cross multiply
    605,873.60x = 908,810.40 × 512,561.60
  4. Step 4: Simplify right side
    605,873.60x = 465,821,312,720.64
  5. Step 5: Solve for x
    x = 465,821,312,720.64/605,873.60
  6. Step 6: Final answer
    x = 768,842.40

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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.