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Finding the Fourth Proportional to 705,840.36, 974,065.86 and 383,550.44

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Solution

The fourth proportional to 705,840.36, 974,065.86 and 383,550.44 is: 529,302.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,840.36 : 974,065.86 = 383,550.44 : x
  2. Step 2: Convert to fraction form
    705,840.36/974,065.86 = 383,550.44/x
  3. Step 3: Cross multiply
    705,840.36x = 974,065.86 × 383,550.44
  4. Step 4: Simplify right side
    705,840.36x = 373,603,389,191.98
  5. Step 5: Solve for x
    x = 373,603,389,191.98/705,840.36
  6. Step 6: Final answer
    x = 529,302.96

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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.