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Finding the Fourth Proportional to 537,420.30, 806,130.45 and 369,458.70

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Solution

The fourth proportional to 537,420.30, 806,130.45 and 369,458.70 is: 554,188.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    537,420.30 : 806,130.45 = 369,458.70 : x
  2. Step 2: Convert to fraction form
    537,420.30/806,130.45 = 369,458.70/x
  3. Step 3: Cross multiply
    537,420.30x = 806,130.45 × 369,458.70
  4. Step 4: Simplify right side
    537,420.30x = 297,831,908,087.42
  5. Step 5: Solve for x
    x = 297,831,908,087.42/537,420.30
  6. Step 6: Final answer
    x = 554,188.05

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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.