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Finding the Fourth Proportional to 302,485.60, 453,663.60 and 134,005.60

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Solution

The fourth proportional to 302,485.60, 453,663.60 and 134,005.60 is: 200,979.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,485.60 : 453,663.60 = 134,005.60 : x
  2. Step 2: Convert to fraction form
    302,485.60/453,663.60 = 134,005.60/x
  3. Step 3: Cross multiply
    302,485.60x = 453,663.60 × 134,005.60
  4. Step 4: Simplify right side
    302,485.60x = 60,793,462,916.16
  5. Step 5: Solve for x
    x = 60,793,462,916.16/302,485.60
  6. Step 6: Final answer
    x = 200,979.69

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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.