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Finding the Fourth Proportional to 511,321.68, 705,626.28 and 296,588.88

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Solution

The fourth proportional to 511,321.68, 705,626.28 and 296,588.88 is: 409,294.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,321.68 : 705,626.28 = 296,588.88 : x
  2. Step 2: Convert to fraction form
    511,321.68/705,626.28 = 296,588.88/x
  3. Step 3: Cross multiply
    511,321.68x = 705,626.28 × 296,588.88
  4. Step 4: Simplify right side
    511,321.68x = 209,280,908,083.77
  5. Step 5: Solve for x
    x = 209,280,908,083.77/511,321.68
  6. Step 6: Final answer
    x = 409,294.02

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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.