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Finding the Fourth Proportional to 668,210.40, 999,399.60 and 597,643.20

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Solution

The fourth proportional to 668,210.40, 999,399.60 and 597,643.20 is: 893,856.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,210.40 : 999,399.60 = 597,643.20 : x
  2. Step 2: Convert to fraction form
    668,210.40/999,399.60 = 597,643.20/x
  3. Step 3: Cross multiply
    668,210.40x = 999,399.60 × 597,643.20
  4. Step 4: Simplify right side
    668,210.40x = 597,284,375,022.72
  5. Step 5: Solve for x
    x = 597,284,375,022.72/668,210.40
  6. Step 6: Final answer
    x = 893,856.75

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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.