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Finding the Fourth Proportional to 445,907.17, 615,311.22 and 264,587.86

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Solution

The fourth proportional to 445,907.17, 615,311.22 and 264,587.86 is: 365,107.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,907.17 : 615,311.22 = 264,587.86 : x
  2. Step 2: Convert to fraction form
    445,907.17/615,311.22 = 264,587.86/x
  3. Step 3: Cross multiply
    445,907.17x = 615,311.22 × 264,587.86
  4. Step 4: Simplify right side
    445,907.17x = 162,803,878,933.79
  5. Step 5: Solve for x
    x = 162,803,878,933.79/445,907.17
  6. Step 6: Final answer
    x = 365,107.11

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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.