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Finding the Fourth Proportional to 626,928.56, 865,751.88 and 436,462.76

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Solution

The fourth proportional to 626,928.56, 865,751.88 and 436,462.76 is: 602,729.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,928.56 : 865,751.88 = 436,462.76 : x
  2. Step 2: Convert to fraction form
    626,928.56/865,751.88 = 436,462.76/x
  3. Step 3: Cross multiply
    626,928.56x = 865,751.88 × 436,462.76
  4. Step 4: Simplify right side
    626,928.56x = 377,868,455,019.99
  5. Step 5: Solve for x
    x = 377,868,455,019.99/626,928.56
  6. Step 6: Final answer
    x = 602,729.69

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.