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Finding the Fourth Proportional to 399,953.76, 552,075.18 and 230,255.52

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Solution

The fourth proportional to 399,953.76, 552,075.18 and 230,255.52 is: 317,832.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,953.76 : 552,075.18 = 230,255.52 : x
  2. Step 2: Convert to fraction form
    399,953.76/552,075.18 = 230,255.52/x
  3. Step 3: Cross multiply
    399,953.76x = 552,075.18 × 230,255.52
  4. Step 4: Simplify right side
    399,953.76x = 127,118,357,649.99
  5. Step 5: Solve for x
    x = 127,118,357,649.99/399,953.76
  6. Step 6: Final answer
    x = 317,832.64

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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.