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Finding the Fourth Proportional to 520,411.24, 718,158.18 and 294,051.88

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Solution

The fourth proportional to 520,411.24, 718,158.18 and 294,051.88 is: 405,786.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,411.24 : 718,158.18 = 294,051.88 : x
  2. Step 2: Convert to fraction form
    520,411.24/718,158.18 = 294,051.88/x
  3. Step 3: Cross multiply
    520,411.24x = 718,158.18 × 294,051.88
  4. Step 4: Simplify right side
    520,411.24x = 211,175,762,966.38
  5. Step 5: Solve for x
    x = 211,175,762,966.38/520,411.24
  6. Step 6: Final answer
    x = 405,786.32

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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.