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Finding the Fourth Proportional to 520,006.11, 717,599.70 and 290,567.13

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Solution

The fourth proportional to 520,006.11, 717,599.70 and 290,567.13 is: 400,977.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,006.11 : 717,599.70 = 290,567.13 : x
  2. Step 2: Convert to fraction form
    520,006.11/717,599.70 = 290,567.13/x
  3. Step 3: Cross multiply
    520,006.11x = 717,599.70 × 290,567.13
  4. Step 4: Simplify right side
    520,006.11x = 208,510,885,317.86
  5. Step 5: Solve for x
    x = 208,510,885,317.86/520,006.11
  6. Step 6: Final answer
    x = 400,977.76

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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.