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Finding the Fourth Proportional to 415,116.10, 622,674.15 and 415,116.10

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Solution

The fourth proportional to 415,116.10, 622,674.15 and 415,116.10 is: 622,674.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,116.10 : 622,674.15 = 415,116.10 : x
  2. Step 2: Convert to fraction form
    415,116.10/622,674.15 = 415,116.10/x
  3. Step 3: Cross multiply
    415,116.10x = 622,674.15 × 415,116.10
  4. Step 4: Simplify right side
    415,116.10x = 258,482,064,718.82
  5. Step 5: Solve for x
    x = 258,482,064,718.82/415,116.10
  6. Step 6: Final answer
    x = 622,674.15

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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.