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Finding the Fourth Proportional to 415,206.40, 622,809.60 and 362,718.40

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Solution

The fourth proportional to 415,206.40, 622,809.60 and 362,718.40 is: 544,077.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,206.40 : 622,809.60 = 362,718.40 : x
  2. Step 2: Convert to fraction form
    415,206.40/622,809.60 = 362,718.40/x
  3. Step 3: Cross multiply
    415,206.40x = 622,809.60 × 362,718.40
  4. Step 4: Simplify right side
    415,206.40x = 225,904,501,616.64
  5. Step 5: Solve for x
    x = 225,904,501,616.64/415,206.40
  6. Step 6: Final answer
    x = 544,077.60

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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.