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Finding the Fourth Proportional to 371,209.50, 512,004.49 and 340,681.01

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Solution

The fourth proportional to 371,209.50, 512,004.49 and 340,681.01 is: 469,896.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,209.50 : 512,004.49 = 340,681.01 : x
  2. Step 2: Convert to fraction form
    371,209.50/512,004.49 = 340,681.01/x
  3. Step 3: Cross multiply
    371,209.50x = 512,004.49 × 340,681.01
  4. Step 4: Simplify right side
    371,209.50x = 174,430,202,514.31
  5. Step 5: Solve for x
    x = 174,430,202,514.31/371,209.50
  6. Step 6: Final answer
    x = 469,896.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.