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Finding the Fourth Proportional to 517,811.92, 714,800.68 and 348,144.40

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Solution

The fourth proportional to 517,811.92, 714,800.68 and 348,144.40 is: 480,587.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,811.92 : 714,800.68 = 348,144.40 : x
  2. Step 2: Convert to fraction form
    517,811.92/714,800.68 = 348,144.40/x
  3. Step 3: Cross multiply
    517,811.92x = 714,800.68 × 348,144.40
  4. Step 4: Simplify right side
    517,811.92x = 248,853,853,858.19
  5. Step 5: Solve for x
    x = 248,853,853,858.19/517,811.92
  6. Step 6: Final answer
    x = 480,587.34

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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.