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Finding the Fourth Proportional to 723,077.86, 997,907.17 and 400,889.06

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Solution

The fourth proportional to 723,077.86, 997,907.17 and 400,889.06 is: 553,260.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,077.86 : 997,907.17 = 400,889.06 : x
  2. Step 2: Convert to fraction form
    723,077.86/997,907.17 = 400,889.06/x
  3. Step 3: Cross multiply
    723,077.86x = 997,907.17 × 400,889.06
  4. Step 4: Simplify right side
    723,077.86x = 400,050,067,348.56
  5. Step 5: Solve for x
    x = 400,050,067,348.56/723,077.86
  6. Step 6: Final answer
    x = 553,260.01

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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.