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Finding the Fourth Proportional to 546,892.80, 819,982.80 and 490,905.60

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Solution

The fourth proportional to 546,892.80, 819,982.80 and 490,905.60 is: 736,038.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,892.80 : 819,982.80 = 490,905.60 : x
  2. Step 2: Convert to fraction form
    546,892.80/819,982.80 = 490,905.60/x
  3. Step 3: Cross multiply
    546,892.80x = 819,982.80 × 490,905.60
  4. Step 4: Simplify right side
    546,892.80x = 402,534,148,423.68
  5. Step 5: Solve for x
    x = 402,534,148,423.68/546,892.80
  6. Step 6: Final answer
    x = 736,038.49

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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.