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Finding the Fourth Proportional to 496,528.90, 745,101.15 and 260,041.30

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Solution

The fourth proportional to 496,528.90, 745,101.15 and 260,041.30 is: 390,223.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,528.90 : 745,101.15 = 260,041.30 : x
  2. Step 2: Convert to fraction form
    496,528.90/745,101.15 = 260,041.30/x
  3. Step 3: Cross multiply
    496,528.90x = 745,101.15 × 260,041.30
  4. Step 4: Simplify right side
    496,528.90x = 193,757,071,677.50
  5. Step 5: Solve for x
    x = 193,757,071,677.50/496,528.90
  6. Step 6: Final answer
    x = 390,223.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.