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Finding the Fourth Proportional to 548,265.60, 823,780.80 and 348,681.60

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Solution

The fourth proportional to 548,265.60, 823,780.80 and 348,681.60 is: 523,901.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,265.60 : 823,780.80 = 348,681.60 : x
  2. Step 2: Convert to fraction form
    548,265.60/823,780.80 = 348,681.60/x
  3. Step 3: Cross multiply
    548,265.60x = 823,780.80 × 348,681.60
  4. Step 4: Simplify right side
    548,265.60x = 287,237,207,393.28
  5. Step 5: Solve for x
    x = 287,237,207,393.28/548,265.60
  6. Step 6: Final answer
    x = 523,901.57

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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.