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Finding the Fourth Proportional to 620,879.36, 935,467.90 and 560,977.46

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Solution

The fourth proportional to 620,879.36, 935,467.90 and 560,977.46 is: 845,214.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,879.36 : 935,467.90 = 560,977.46 : x
  2. Step 2: Convert to fraction form
    620,879.36/935,467.90 = 560,977.46/x
  3. Step 3: Cross multiply
    620,879.36x = 935,467.90 × 560,977.46
  4. Step 4: Simplify right side
    620,879.36x = 524,776,403,648.65
  5. Step 5: Solve for x
    x = 524,776,403,648.65/620,879.36
  6. Step 6: Final answer
    x = 845,214.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.