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Finding the Fourth Proportional to 341,457.20, 512,646.60 and 217,041.20

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Solution

The fourth proportional to 341,457.20, 512,646.60 and 217,041.20 is: 325,854.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,457.20 : 512,646.60 = 217,041.20 : x
  2. Step 2: Convert to fraction form
    341,457.20/512,646.60 = 217,041.20/x
  3. Step 3: Cross multiply
    341,457.20x = 512,646.60 × 217,041.20
  4. Step 4: Simplify right side
    341,457.20x = 111,265,433,239.92
  5. Step 5: Solve for x
    x = 111,265,433,239.92/341,457.20
  6. Step 6: Final answer
    x = 325,854.70

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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.