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Finding the Fourth Proportional to 301,171.55, 415,547.04 and 180,266.90

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Solution

The fourth proportional to 301,171.55, 415,547.04 and 180,266.90 is: 248,726.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,171.55 : 415,547.04 = 180,266.90 : x
  2. Step 2: Convert to fraction form
    301,171.55/415,547.04 = 180,266.90/x
  3. Step 3: Cross multiply
    301,171.55x = 415,547.04 × 180,266.90
  4. Step 4: Simplify right side
    301,171.55x = 74,909,376,704.98
  5. Step 5: Solve for x
    x = 74,909,376,704.98/301,171.55
  6. Step 6: Final answer
    x = 248,726.60

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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.