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Finding the Fourth Proportional to 519,434.40, 779,256.90 and 294,902.40

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Solution

The fourth proportional to 519,434.40, 779,256.90 and 294,902.40 is: 442,413.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,434.40 : 779,256.90 = 294,902.40 : x
  2. Step 2: Convert to fraction form
    519,434.40/779,256.90 = 294,902.40/x
  3. Step 3: Cross multiply
    519,434.40x = 779,256.90 × 294,902.40
  4. Step 4: Simplify right side
    519,434.40x = 229,804,730,026.56
  5. Step 5: Solve for x
    x = 229,804,730,026.56/519,434.40
  6. Step 6: Final answer
    x = 442,413.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.