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Finding the Fourth Proportional to 341,521.90, 478,830.50 and 341,521.90

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Solution

The fourth proportional to 341,521.90, 478,830.50 and 341,521.90 is: 478,830.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,521.90 : 478,830.50 = 341,521.90 : x
  2. Step 2: Convert to fraction form
    341,521.90/478,830.50 = 341,521.90/x
  3. Step 3: Cross multiply
    341,521.90x = 478,830.50 × 341,521.90
  4. Step 4: Simplify right side
    341,521.90x = 163,531,102,137.95
  5. Step 5: Solve for x
    x = 163,531,102,137.95/341,521.90
  6. Step 6: Final answer
    x = 478,830.50

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.