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Finding the Fourth Proportional to 526,549.40, 789,824.10 and 189,970.10

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Solution

The fourth proportional to 526,549.40, 789,824.10 and 189,970.10 is: 284,955.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,549.40 : 789,824.10 = 189,970.10 : x
  2. Step 2: Convert to fraction form
    526,549.40/789,824.10 = 189,970.10/x
  3. Step 3: Cross multiply
    526,549.40x = 789,824.10 × 189,970.10
  4. Step 4: Simplify right side
    526,549.40x = 150,042,963,259.41
  5. Step 5: Solve for x
    x = 150,042,963,259.41/526,549.40
  6. Step 6: Final answer
    x = 284,955.15

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1.5x scale

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.