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Finding the Fourth Proportional to 536,775.32, 740,751.47 and 307,336.12

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Solution

The fourth proportional to 536,775.32, 740,751.47 and 307,336.12 is: 424,124.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,775.32 : 740,751.47 = 307,336.12 : x
  2. Step 2: Convert to fraction form
    536,775.32/740,751.47 = 307,336.12/x
  3. Step 3: Cross multiply
    536,775.32x = 740,751.47 × 307,336.12
  4. Step 4: Simplify right side
    536,775.32x = 227,659,679,285.54
  5. Step 5: Solve for x
    x = 227,659,679,285.54/536,775.32
  6. Step 6: Final answer
    x = 424,124.72

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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.