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Finding the Fourth Proportional to 622,712.99, 934,070.40 and 173,435.15

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Solution

The fourth proportional to 622,712.99, 934,070.40 and 173,435.15 is: 260,152.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,712.99 : 934,070.40 = 173,435.15 : x
  2. Step 2: Convert to fraction form
    622,712.99/934,070.40 = 173,435.15/x
  3. Step 3: Cross multiply
    622,712.99x = 934,070.40 × 173,435.15
  4. Step 4: Simplify right side
    622,712.99x = 162,000,642,269.74
  5. Step 5: Solve for x
    x = 162,000,642,269.74/622,712.99
  6. Step 6: Final answer
    x = 260,152.98

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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.