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Finding the Fourth Proportional to 720,048.83, 1,078,889.83 and 246,475.85

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Solution

The fourth proportional to 720,048.83, 1,078,889.83 and 246,475.85 is: 369,308.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,048.83 : 1,078,889.83 = 246,475.85 : x
  2. Step 2: Convert to fraction form
    720,048.83/1,078,889.83 = 246,475.85/x
  3. Step 3: Cross multiply
    720,048.83x = 1,078,889.83 × 246,475.85
  4. Step 4: Simplify right side
    720,048.83x = 265,920,287,905.61
  5. Step 5: Solve for x
    x = 265,920,287,905.61/720,048.83
  6. Step 6: Final answer
    x = 369,308.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.