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Finding the Fourth Proportional to 705,627.36, 973,728.88 and 383,336.46

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Solution

The fourth proportional to 705,627.36, 973,728.88 and 383,336.46 is: 528,984.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,627.36 : 973,728.88 = 383,336.46 : x
  2. Step 2: Convert to fraction form
    705,627.36/973,728.88 = 383,336.46/x
  3. Step 3: Cross multiply
    705,627.36x = 973,728.88 × 383,336.46
  4. Step 4: Simplify right side
    705,627.36x = 373,265,780,900.62
  5. Step 5: Solve for x
    x = 373,265,780,900.62/705,627.36
  6. Step 6: Final answer
    x = 528,984.28

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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.