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Finding the Fourth Proportional to 352,018.30, 528,064.36 and 99,296.79

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Solution

The fourth proportional to 352,018.30, 528,064.36 and 99,296.79 is: 148,955.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,018.30 : 528,064.36 = 99,296.79 : x
  2. Step 2: Convert to fraction form
    352,018.30/528,064.36 = 99,296.79/x
  3. Step 3: Cross multiply
    352,018.30x = 528,064.36 × 99,296.79
  4. Step 4: Simplify right side
    352,018.30x = 52,435,095,861.40
  5. Step 5: Solve for x
    x = 52,435,095,861.40/352,018.30
  6. Step 6: Final answer
    x = 148,955.60

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1.5x scale

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.