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Finding the Fourth Proportional to 528,194.08, 728,924.32 and 298,746.87

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Solution

The fourth proportional to 528,194.08, 728,924.32 and 298,746.87 is: 412,280.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,194.08 : 728,924.32 = 298,746.87 : x
  2. Step 2: Convert to fraction form
    528,194.08/728,924.32 = 298,746.87/x
  3. Step 3: Cross multiply
    528,194.08x = 728,924.32 × 298,746.87
  4. Step 4: Simplify right side
    528,194.08x = 217,763,859,066.88
  5. Step 5: Solve for x
    x = 217,763,859,066.88/528,194.08
  6. Step 6: Final answer
    x = 412,280.01

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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.