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Finding the Fourth Proportional to 709,751.80, 1,064,627.70 and 336,503.80

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Solution

The fourth proportional to 709,751.80, 1,064,627.70 and 336,503.80 is: 504,755.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,751.80 : 1,064,627.70 = 336,503.80 : x
  2. Step 2: Convert to fraction form
    709,751.80/1,064,627.70 = 336,503.80/x
  3. Step 3: Cross multiply
    709,751.80x = 1,064,627.70 × 336,503.80
  4. Step 4: Simplify right side
    709,751.80x = 358,251,266,635.26
  5. Step 5: Solve for x
    x = 358,251,266,635.26/709,751.80
  6. Step 6: Final answer
    x = 504,755.70

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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.