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Finding the Fourth Proportional to 519,837.43, 717,341.91 and 302,026.81

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Solution

The fourth proportional to 519,837.43, 717,341.91 and 302,026.81 is: 416,777.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,837.43 : 717,341.91 = 302,026.81 : x
  2. Step 2: Convert to fraction form
    519,837.43/717,341.91 = 302,026.81/x
  3. Step 3: Cross multiply
    519,837.43x = 717,341.91 × 302,026.81
  4. Step 4: Simplify right side
    519,837.43x = 216,656,488,756.61
  5. Step 5: Solve for x
    x = 216,656,488,756.61/519,837.43
  6. Step 6: Final answer
    x = 416,777.39

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1.5x scale

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.