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Finding the Fourth Proportional to 504,771.95, 696,585.81 and 289,953.57

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Solution

The fourth proportional to 504,771.95, 696,585.81 and 289,953.57 is: 400,136.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,771.95 : 696,585.81 = 289,953.57 : x
  2. Step 2: Convert to fraction form
    504,771.95/696,585.81 = 289,953.57/x
  3. Step 3: Cross multiply
    504,771.95x = 696,585.81 × 289,953.57
  4. Step 4: Simplify right side
    504,771.95x = 201,977,540,971.07
  5. Step 5: Solve for x
    x = 201,977,540,971.07/504,771.95
  6. Step 6: Final answer
    x = 400,136.23

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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.