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Finding the Fourth Proportional to 705,584.94, 973,657.97 and 391,254.03

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Solution

The fourth proportional to 705,584.94, 973,657.97 and 391,254.03 is: 539,903.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,584.94 : 973,657.97 = 391,254.03 : x
  2. Step 2: Convert to fraction form
    705,584.94/973,657.97 = 391,254.03/x
  3. Step 3: Cross multiply
    705,584.94x = 973,657.97 × 391,254.03
  4. Step 4: Simplify right side
    705,584.94x = 380,947,604,115.05
  5. Step 5: Solve for x
    x = 380,947,604,115.05/705,584.94
  6. Step 6: Final answer
    x = 539,903.25

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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.