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Finding the Fourth Proportional to 704,893.79, 972,754.40 and 382,603.95

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Solution

The fourth proportional to 704,893.79, 972,754.40 and 382,603.95 is: 527,993.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,893.79 : 972,754.40 = 382,603.95 : x
  2. Step 2: Convert to fraction form
    704,893.79/972,754.40 = 382,603.95/x
  3. Step 3: Cross multiply
    704,893.79x = 972,754.40 × 382,603.95
  4. Step 4: Simplify right side
    704,893.79x = 372,179,673,906.86
  5. Step 5: Solve for x
    x = 372,179,673,906.86/704,893.79
  6. Step 6: Final answer
    x = 527,993.98

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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.