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Finding the Fourth Proportional to 710,421.60, 1,064,888 and 331,029.52

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Solution

The fourth proportional to 710,421.60, 1,064,888 and 331,029.52 is: 496,197.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,421.60 : 1,064,888 = 331,029.52 : x
  2. Step 2: Convert to fraction form
    710,421.60/1,064,888 = 331,029.52/x
  3. Step 3: Cross multiply
    710,421.60x = 1,064,888 × 331,029.52
  4. Step 4: Simplify right side
    710,421.60x = 352,509,363,493.76
  5. Step 5: Solve for x
    x = 352,509,363,493.76/710,421.60
  6. Step 6: Final answer
    x = 496,197.42

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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.