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Finding the Fourth Proportional to 567,594.15, 783,285.23 and 312,954.39

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Solution

The fourth proportional to 567,594.15, 783,285.23 and 312,954.39 is: 431,879.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,594.15 : 783,285.23 = 312,954.39 : x
  2. Step 2: Convert to fraction form
    567,594.15/783,285.23 = 312,954.39/x
  3. Step 3: Cross multiply
    567,594.15x = 783,285.23 × 312,954.39
  4. Step 4: Simplify right side
    567,594.15x = 245,132,549,785.89
  5. Step 5: Solve for x
    x = 245,132,549,785.89/567,594.15
  6. Step 6: Final answer
    x = 431,879.98

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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.