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Finding the Fourth Proportional to 406,798.66, 609,774.36 and 136,726.30

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Solution

The fourth proportional to 406,798.66, 609,774.36 and 136,726.30 is: 204,947.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,798.66 : 609,774.36 = 136,726.30 : x
  2. Step 2: Convert to fraction form
    406,798.66/609,774.36 = 136,726.30/x
  3. Step 3: Cross multiply
    406,798.66x = 609,774.36 × 136,726.30
  4. Step 4: Simplify right side
    406,798.66x = 83,372,192,077.67
  5. Step 5: Solve for x
    x = 83,372,192,077.67/406,798.66
  6. Step 6: Final answer
    x = 204,947.07

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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.