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Finding the Fourth Proportional to 504,013.60, 756,020.40 and 409,535.20

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Solution

The fourth proportional to 504,013.60, 756,020.40 and 409,535.20 is: 614,302.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,013.60 : 756,020.40 = 409,535.20 : x
  2. Step 2: Convert to fraction form
    504,013.60/756,020.40 = 409,535.20/x
  3. Step 3: Cross multiply
    504,013.60x = 756,020.40 × 409,535.20
  4. Step 4: Simplify right side
    504,013.60x = 309,616,965,718.08
  5. Step 5: Solve for x
    x = 309,616,965,718.08/504,013.60
  6. Step 6: Final answer
    x = 614,302.80

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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.