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Finding the Fourth Proportional to 528,231.40, 792,347.10 and 528,231.40

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Solution

The fourth proportional to 528,231.40, 792,347.10 and 528,231.40 is: 792,347.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,231.40 : 792,347.10 = 528,231.40 : x
  2. Step 2: Convert to fraction form
    528,231.40/792,347.10 = 528,231.40/x
  3. Step 3: Cross multiply
    528,231.40x = 792,347.10 × 528,231.40
  4. Step 4: Simplify right side
    528,231.40x = 418,542,617,918.94
  5. Step 5: Solve for x
    x = 418,542,617,918.94/528,231.40
  6. Step 6: Final answer
    x = 792,347.10

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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.