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Finding the Fourth Proportional to 569,879.79, 790,030.50 and 539,543.67

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Solution

The fourth proportional to 569,879.79, 790,030.50 and 539,543.67 is: 747,975.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,879.79 : 790,030.50 = 539,543.67 : x
  2. Step 2: Convert to fraction form
    569,879.79/790,030.50 = 539,543.67/x
  3. Step 3: Cross multiply
    569,879.79x = 790,030.50 × 539,543.67
  4. Step 4: Simplify right side
    569,879.79x = 426,255,955,381.94
  5. Step 5: Solve for x
    x = 426,255,955,381.94/569,879.79
  6. Step 6: Final answer
    x = 747,975.21

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.