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Finding the Fourth Proportional to 372,575.42, 514,124.76 and 211,430.47

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Solution

The fourth proportional to 372,575.42, 514,124.76 and 211,430.47 is: 291,757.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,575.42 : 514,124.76 = 211,430.47 : x
  2. Step 2: Convert to fraction form
    372,575.42/514,124.76 = 211,430.47/x
  3. Step 3: Cross multiply
    372,575.42x = 514,124.76 × 211,430.47
  4. Step 4: Simplify right side
    372,575.42x = 108,701,637,074.81
  5. Step 5: Solve for x
    x = 108,701,637,074.81/372,575.42
  6. Step 6: Final answer
    x = 291,757.41

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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.