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Finding the Fourth Proportional to 704,893.32, 972,759.78 and 382,606.20

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Solution

The fourth proportional to 704,893.32, 972,759.78 and 382,606.20 is: 528,000.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,893.32 : 972,759.78 = 382,606.20 : x
  2. Step 2: Convert to fraction form
    704,893.32/972,759.78 = 382,606.20/x
  3. Step 3: Cross multiply
    704,893.32x = 972,759.78 × 382,606.20
  4. Step 4: Simplify right side
    704,893.32x = 372,183,922,938.64
  5. Step 5: Solve for x
    x = 372,183,922,938.64/704,893.32
  6. Step 6: Final answer
    x = 528,000.35

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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.