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Finding the Fourth Proportional to 415,117.10, 622,675.65 and 415,117.10

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Solution

The fourth proportional to 415,117.10, 622,675.65 and 415,117.10 is: 622,675.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,117.10 : 622,675.65 = 415,117.10 : x
  2. Step 2: Convert to fraction form
    415,117.10/622,675.65 = 415,117.10/x
  3. Step 3: Cross multiply
    415,117.10x = 622,675.65 × 415,117.10
  4. Step 4: Simplify right side
    415,117.10x = 258,483,310,068.62
  5. Step 5: Solve for x
    x = 258,483,310,068.62/415,117.10
  6. Step 6: Final answer
    x = 622,675.65

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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.