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Finding the Fourth Proportional to 664,544.84, 917,071.64 and 362,738.84

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Solution

The fourth proportional to 664,544.84, 917,071.64 and 362,738.84 is: 500,579.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,544.84 : 917,071.64 = 362,738.84 : x
  2. Step 2: Convert to fraction form
    664,544.84/917,071.64 = 362,738.84/x
  3. Step 3: Cross multiply
    664,544.84x = 917,071.64 × 362,738.84
  4. Step 4: Simplify right side
    664,544.84x = 332,657,502,890.50
  5. Step 5: Solve for x
    x = 332,657,502,890.50/664,544.84
  6. Step 6: Final answer
    x = 500,579.47

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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.