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Finding the Fourth Proportional to 533,736.41, 736,483.51 and 318,830.86

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Solution

The fourth proportional to 533,736.41, 736,483.51 and 318,830.86 is: 439,943.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,736.41 : 736,483.51 = 318,830.86 : x
  2. Step 2: Convert to fraction form
    533,736.41/736,483.51 = 318,830.86/x
  3. Step 3: Cross multiply
    533,736.41x = 736,483.51 × 318,830.86
  4. Step 4: Simplify right side
    533,736.41x = 234,813,665,592.55
  5. Step 5: Solve for x
    x = 234,813,665,592.55/533,736.41
  6. Step 6: Final answer
    x = 439,943.13

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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.