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Finding the Fourth Proportional to 406,763.28, 610,168.14 and 136,783.08

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Solution

The fourth proportional to 406,763.28, 610,168.14 and 136,783.08 is: 205,182.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,763.28 : 610,168.14 = 136,783.08 : x
  2. Step 2: Convert to fraction form
    406,763.28/610,168.14 = 136,783.08/x
  3. Step 3: Cross multiply
    406,763.28x = 610,168.14 × 136,783.08
  4. Step 4: Simplify right side
    406,763.28x = 83,460,677,507.07
  5. Step 5: Solve for x
    x = 83,460,677,507.07/406,763.28
  6. Step 6: Final answer
    x = 205,182.43

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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.