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Finding the Fourth Proportional to 566,707.75, 782,056.70 and 312,058.33

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Solution

The fourth proportional to 566,707.75, 782,056.70 and 312,058.33 is: 430,640.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,707.75 : 782,056.70 = 312,058.33 : x
  2. Step 2: Convert to fraction form
    566,707.75/782,056.70 = 312,058.33/x
  3. Step 3: Cross multiply
    566,707.75x = 782,056.70 × 312,058.33
  4. Step 4: Simplify right side
    566,707.75x = 244,047,307,767.31
  5. Step 5: Solve for x
    x = 244,047,307,767.31/566,707.75
  6. Step 6: Final answer
    x = 430,640.50

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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.