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Finding the Fourth Proportional to 411,091.60, 616,637.40 and 201,139.60

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Solution

The fourth proportional to 411,091.60, 616,637.40 and 201,139.60 is: 301,709.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,091.60 : 616,637.40 = 201,139.60 : x
  2. Step 2: Convert to fraction form
    411,091.60/616,637.40 = 201,139.60/x
  3. Step 3: Cross multiply
    411,091.60x = 616,637.40 × 201,139.60
  4. Step 4: Simplify right side
    411,091.60x = 124,030,199,981.04
  5. Step 5: Solve for x
    x = 124,030,199,981.04/411,091.60
  6. Step 6: Final answer
    x = 301,709.40

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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.