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Finding the Fourth Proportional to 514,131.76, 709,585.86 and 352,854.28

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Solution

The fourth proportional to 514,131.76, 709,585.86 and 352,854.28 is: 486,996.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,131.76 : 709,585.86 = 352,854.28 : x
  2. Step 2: Convert to fraction form
    514,131.76/709,585.86 = 352,854.28/x
  3. Step 3: Cross multiply
    514,131.76x = 709,585.86 × 352,854.28
  4. Step 4: Simplify right side
    514,131.76x = 250,380,407,728.48
  5. Step 5: Solve for x
    x = 250,380,407,728.48/514,131.76
  6. Step 6: Final answer
    x = 486,996.58

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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.