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Finding the Fourth Proportional to 519,011.04, 716,285.31 and 315,014.97

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Solution

The fourth proportional to 519,011.04, 716,285.31 and 315,014.97 is: 434,751.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,011.04 : 716,285.31 = 315,014.97 : x
  2. Step 2: Convert to fraction form
    519,011.04/716,285.31 = 315,014.97/x
  3. Step 3: Cross multiply
    519,011.04x = 716,285.31 × 315,014.97
  4. Step 4: Simplify right side
    519,011.04x = 225,640,595,441.09
  5. Step 5: Solve for x
    x = 225,640,595,441.09/519,011.04
  6. Step 6: Final answer
    x = 434,751.05

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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.