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Finding the Fourth Proportional to 369,877.80, 553,650.30 and 358,213.80

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Solution

The fourth proportional to 369,877.80, 553,650.30 and 358,213.80 is: 536,191.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,877.80 : 553,650.30 = 358,213.80 : x
  2. Step 2: Convert to fraction form
    369,877.80/553,650.30 = 358,213.80/x
  3. Step 3: Cross multiply
    369,877.80x = 553,650.30 × 358,213.80
  4. Step 4: Simplify right side
    369,877.80x = 198,325,177,834.14
  5. Step 5: Solve for x
    x = 198,325,177,834.14/369,877.80
  6. Step 6: Final answer
    x = 536,191.08

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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.