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Finding the Fourth Proportional to 567,746.70, 783,480.39 and 309,625.58

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Solution

The fourth proportional to 567,746.70, 783,480.39 and 309,625.58 is: 427,277.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,746.70 : 783,480.39 = 309,625.58 : x
  2. Step 2: Convert to fraction form
    567,746.70/783,480.39 = 309,625.58/x
  3. Step 3: Cross multiply
    567,746.70x = 783,480.39 × 309,625.58
  4. Step 4: Simplify right side
    567,746.70x = 242,585,566,254.97
  5. Step 5: Solve for x
    x = 242,585,566,254.97/567,746.70
  6. Step 6: Final answer
    x = 427,277.81

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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.