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Finding the Fourth Proportional to 411,925.60, 616,851.60 and 270,920.80

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Solution

The fourth proportional to 411,925.60, 616,851.60 and 270,920.80 is: 405,699.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,925.60 : 616,851.60 = 270,920.80 : x
  2. Step 2: Convert to fraction form
    411,925.60/616,851.60 = 270,920.80/x
  3. Step 3: Cross multiply
    411,925.60x = 616,851.60 × 270,920.80
  4. Step 4: Simplify right side
    411,925.60x = 167,117,928,953.28
  5. Step 5: Solve for x
    x = 167,117,928,953.28/411,925.60
  6. Step 6: Final answer
    x = 405,699.30

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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.