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Finding the Fourth Proportional to 580,083.60, 869,088.60 and 497,139.60

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Solution

The fourth proportional to 580,083.60, 869,088.60 and 497,139.60 is: 744,820.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,083.60 : 869,088.60 = 497,139.60 : x
  2. Step 2: Convert to fraction form
    580,083.60/869,088.60 = 497,139.60/x
  3. Step 3: Cross multiply
    580,083.60x = 869,088.60 × 497,139.60
  4. Step 4: Simplify right side
    580,083.60x = 432,058,358,968.56
  5. Step 5: Solve for x
    x = 432,058,358,968.56/580,083.60
  6. Step 6: Final answer
    x = 744,820.85

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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.