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Finding the Fourth Proportional to 530,511.64, 732,763.62 and 385,085.08

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Solution

The fourth proportional to 530,511.64, 732,763.62 and 385,085.08 is: 531,894.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,511.64 : 732,763.62 = 385,085.08 : x
  2. Step 2: Convert to fraction form
    530,511.64/732,763.62 = 385,085.08/x
  3. Step 3: Cross multiply
    530,511.64x = 732,763.62 × 385,085.08
  4. Step 4: Simplify right side
    530,511.64x = 282,176,337,228.79
  5. Step 5: Solve for x
    x = 282,176,337,228.79/530,511.64
  6. Step 6: Final answer
    x = 531,894.71

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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.