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Finding the Fourth Proportional to 521,528.10, 731,189.10 and 521,528.10

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Solution

The fourth proportional to 521,528.10, 731,189.10 and 521,528.10 is: 731,189.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,528.10 : 731,189.10 = 521,528.10 : x
  2. Step 2: Convert to fraction form
    521,528.10/731,189.10 = 521,528.10/x
  3. Step 3: Cross multiply
    521,528.10x = 731,189.10 × 521,528.10
  4. Step 4: Simplify right side
    521,528.10x = 381,335,662,063.71
  5. Step 5: Solve for x
    x = 381,335,662,063.71/521,528.10
  6. Step 6: Final answer
    x = 731,189.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.