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Finding the Fourth Proportional to 530,212.91, 794,740.95 and 260,526.65

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Solution

The fourth proportional to 530,212.91, 794,740.95 and 260,526.65 is: 390,505.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,212.91 : 794,740.95 = 260,526.65 : x
  2. Step 2: Convert to fraction form
    530,212.91/794,740.95 = 260,526.65/x
  3. Step 3: Cross multiply
    530,212.91x = 794,740.95 × 260,526.65
  4. Step 4: Simplify right side
    530,212.91x = 207,051,193,347.61
  5. Step 5: Solve for x
    x = 207,051,193,347.61/530,212.91
  6. Step 6: Final answer
    x = 390,505.76

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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.