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Finding the Fourth Proportional to 530,758.29, 732,459.57 and 289,054.01

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Solution

The fourth proportional to 530,758.29, 732,459.57 and 289,054.01 is: 398,901.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,758.29 : 732,459.57 = 289,054.01 : x
  2. Step 2: Convert to fraction form
    530,758.29/732,459.57 = 289,054.01/x
  3. Step 3: Cross multiply
    530,758.29x = 732,459.57 × 289,054.01
  4. Step 4: Simplify right side
    530,758.29x = 211,720,374,426.11
  5. Step 5: Solve for x
    x = 211,720,374,426.11/530,758.29
  6. Step 6: Final answer
    x = 398,901.68

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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.