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Finding the Fourth Proportional to 518,844.49, 716,023.19 and 301,036.70

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Solution

The fourth proportional to 518,844.49, 716,023.19 and 301,036.70 is: 415,440.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,844.49 : 716,023.19 = 301,036.70 : x
  2. Step 2: Convert to fraction form
    518,844.49/716,023.19 = 301,036.70/x
  3. Step 3: Cross multiply
    518,844.49x = 716,023.19 × 301,036.70
  4. Step 4: Simplify right side
    518,844.49x = 215,549,260,783.72
  5. Step 5: Solve for x
    x = 215,549,260,783.72/518,844.49
  6. Step 6: Final answer
    x = 415,440.98

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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.