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Finding the Fourth Proportional to 570,255.86, 786,884.05 and 328,617.62

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Solution

The fourth proportional to 570,255.86, 786,884.05 and 328,617.62 is: 453,452.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,255.86 : 786,884.05 = 328,617.62 : x
  2. Step 2: Convert to fraction form
    570,255.86/786,884.05 = 328,617.62/x
  3. Step 3: Cross multiply
    570,255.86x = 786,884.05 × 328,617.62
  4. Step 4: Simplify right side
    570,255.86x = 258,583,963,726.96
  5. Step 5: Solve for x
    x = 258,583,963,726.96/570,255.86
  6. Step 6: Final answer
    x = 453,452.53

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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.