Home / 528,193.58-728,923.63-298,746.37

Finding the Fourth Proportional to 528,193.58, 728,923.63 and 298,746.37

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Solution

The fourth proportional to 528,193.58, 728,923.63 and 298,746.37 is: 412,279.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,193.58 : 728,923.63 = 298,746.37 : x
  2. Step 2: Convert to fraction form
    528,193.58/728,923.63 = 298,746.37/x
  3. Step 3: Cross multiply
    528,193.58x = 728,923.63 × 298,746.37
  4. Step 4: Simplify right side
    528,193.58x = 217,763,285,900.55
  5. Step 5: Solve for x
    x = 217,763,285,900.55/528,193.58
  6. Step 6: Final answer
    x = 412,279.32

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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.