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Finding the Fourth Proportional to 570,161.82, 786,782.08 and 315,517.26

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Solution

The fourth proportional to 570,161.82, 786,782.08 and 315,517.26 is: 435,391.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,161.82 : 786,782.08 = 315,517.26 : x
  2. Step 2: Convert to fraction form
    570,161.82/786,782.08 = 315,517.26/x
  3. Step 3: Cross multiply
    570,161.82x = 786,782.08 × 315,517.26
  4. Step 4: Simplify right side
    570,161.82x = 248,243,326,098.70
  5. Step 5: Solve for x
    x = 248,243,326,098.70/570,161.82
  6. Step 6: Final answer
    x = 435,391.00

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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.