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Finding the Fourth Proportional to 530,860.17, 732,561.80 and 289,141.59

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Solution

The fourth proportional to 530,860.17, 732,561.80 and 289,141.59 is: 399,001.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,860.17 : 732,561.80 = 289,141.59 : x
  2. Step 2: Convert to fraction form
    530,860.17/732,561.80 = 289,141.59/x
  3. Step 3: Cross multiply
    530,860.17x = 732,561.80 × 289,141.59
  4. Step 4: Simplify right side
    530,860.17x = 211,814,082,179.55
  5. Step 5: Solve for x
    x = 211,814,082,179.55/530,860.17
  6. Step 6: Final answer
    x = 399,001.65

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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.