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Finding the Fourth Proportional to 532,648.58, 735,051.29 and 290,931.21

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Solution

The fourth proportional to 532,648.58, 735,051.29 and 290,931.21 is: 401,483.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,648.58 : 735,051.29 = 290,931.21 : x
  2. Step 2: Convert to fraction form
    532,648.58/735,051.29 = 290,931.21/x
  3. Step 3: Cross multiply
    532,648.58x = 735,051.29 × 290,931.21
  4. Step 4: Simplify right side
    532,648.58x = 213,849,359,757.11
  5. Step 5: Solve for x
    x = 213,849,359,757.11/532,648.58
  6. Step 6: Final answer
    x = 401,483.02

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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.