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Finding the Fourth Proportional to 546,937.40, 820,406.10 and 191,914.40

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Solution

The fourth proportional to 546,937.40, 820,406.10 and 191,914.40 is: 287,871.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,937.40 : 820,406.10 = 191,914.40 : x
  2. Step 2: Convert to fraction form
    546,937.40/820,406.10 = 191,914.40/x
  3. Step 3: Cross multiply
    546,937.40x = 820,406.10 × 191,914.40
  4. Step 4: Simplify right side
    546,937.40x = 157,447,744,437.84
  5. Step 5: Solve for x
    x = 157,447,744,437.84/546,937.40
  6. Step 6: Final answer
    x = 287,871.60

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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.