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Finding the Fourth Proportional to 359,590.74, 496,421.76 and 262,685.79

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Solution

The fourth proportional to 359,590.74, 496,421.76 and 262,685.79 is: 362,642.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,590.74 : 496,421.76 = 262,685.79 : x
  2. Step 2: Convert to fraction form
    359,590.74/496,421.76 = 262,685.79/x
  3. Step 3: Cross multiply
    359,590.74x = 496,421.76 × 262,685.79
  4. Step 4: Simplify right side
    359,590.74x = 130,402,943,183.86
  5. Step 5: Solve for x
    x = 130,402,943,183.86/359,590.74
  6. Step 6: Final answer
    x = 362,642.67

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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.