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Finding the Fourth Proportional to 528,000.03, 728,595 and 298,546.07

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Solution

The fourth proportional to 528,000.03, 728,595 and 298,546.07 is: 411,968.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,000.03 : 728,595 = 298,546.07 : x
  2. Step 2: Convert to fraction form
    528,000.03/728,595 = 298,546.07/x
  3. Step 3: Cross multiply
    528,000.03x = 728,595 × 298,546.07
  4. Step 4: Simplify right side
    528,000.03x = 217,519,170,228.68
  5. Step 5: Solve for x
    x = 217,519,170,228.68/528,000.03
  6. Step 6: Final answer
    x = 411,968.10

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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.