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Finding the Fourth Proportional to 356,421.33, 533,303.19 and 352,435.32

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Solution

The fourth proportional to 356,421.33, 533,303.19 and 352,435.32 is: 527,339.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,421.33 : 533,303.19 = 352,435.32 : x
  2. Step 2: Convert to fraction form
    356,421.33/533,303.19 = 352,435.32/x
  3. Step 3: Cross multiply
    356,421.33x = 533,303.19 × 352,435.32
  4. Step 4: Simplify right side
    356,421.33x = 187,954,880,424.67
  5. Step 5: Solve for x
    x = 187,954,880,424.67/356,421.33
  6. Step 6: Final answer
    x = 527,339.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.