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Finding the Fourth Proportional to 528,134.55, 792,435.11 and 213,206.55

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Solution

The fourth proportional to 528,134.55, 792,435.11 and 213,206.55 is: 319,904.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,134.55 : 792,435.11 = 213,206.55 : x
  2. Step 2: Convert to fraction form
    528,134.55/792,435.11 = 213,206.55/x
  3. Step 3: Cross multiply
    528,134.55x = 792,435.11 × 213,206.55
  4. Step 4: Simplify right side
    528,134.55x = 168,952,354,835.94
  5. Step 5: Solve for x
    x = 168,952,354,835.94/528,134.55
  6. Step 6: Final answer
    x = 319,904.00

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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.