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Finding the Fourth Proportional to 657,519.20, 985,501.20 and 341,813.60

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Solution

The fourth proportional to 657,519.20, 985,501.20 and 341,813.60 is: 512,316.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,519.20 : 985,501.20 = 341,813.60 : x
  2. Step 2: Convert to fraction form
    657,519.20/985,501.20 = 341,813.60/x
  3. Step 3: Cross multiply
    657,519.20x = 985,501.20 × 341,813.60
  4. Step 4: Simplify right side
    657,519.20x = 336,857,712,976.32
  5. Step 5: Solve for x
    x = 336,857,712,976.32/657,519.20
  6. Step 6: Final answer
    x = 512,316.16

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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.