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Finding the Third Proportional to 530,209 and 803,035.50

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Solution

The third proportional to 530,209 and 803,035.50 is: 1,216,248.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,209 : 803,035.50 = 803,035.50 : x
  2. Step 2: Convert to fraction form
    530,209/803,035.50 = 803,035.50/x
  3. Step 3: Cross multiply
    530,209x = 803,035.50 × 803,035.50
  4. Step 4: Simplify right side
    530,209x = 644,866,014,260.25
  5. Step 5: Solve for x
    x = 644,866,014,260.25/530,209
  6. Step 6: Final answer
    x = 1,216,248.71

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.