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Finding the Fourth Proportional to 518,807.34, 715,964.94 and 292,452.84

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Solution

The fourth proportional to 518,807.34, 715,964.94 and 292,452.84 is: 403,591.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,807.34 : 715,964.94 = 292,452.84 : x
  2. Step 2: Convert to fraction form
    518,807.34/715,964.94 = 292,452.84/x
  3. Step 3: Cross multiply
    518,807.34x = 715,964.94 × 292,452.84
  4. Step 4: Simplify right side
    518,807.34x = 209,385,980,043.43
  5. Step 5: Solve for x
    x = 209,385,980,043.43/518,807.34
  6. Step 6: Final answer
    x = 403,591.01

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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.