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Finding the Fourth Proportional to 555,196.25, 766,171.23 and 300,547.64

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Solution

The fourth proportional to 555,196.25, 766,171.23 and 300,547.64 is: 414,755.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,196.25 : 766,171.23 = 300,547.64 : x
  2. Step 2: Convert to fraction form
    555,196.25/766,171.23 = 300,547.64/x
  3. Step 3: Cross multiply
    555,196.25x = 766,171.23 × 300,547.64
  4. Step 4: Simplify right side
    555,196.25x = 230,270,955,012.40
  5. Step 5: Solve for x
    x = 230,270,955,012.40/555,196.25
  6. Step 6: Final answer
    x = 414,755.96

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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.