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Finding the Fourth Proportional to 584,419.40, 876,629.10 and 486,004.40

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Solution

The fourth proportional to 584,419.40, 876,629.10 and 486,004.40 is: 729,006.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,419.40 : 876,629.10 = 486,004.40 : x
  2. Step 2: Convert to fraction form
    584,419.40/876,629.10 = 486,004.40/x
  3. Step 3: Cross multiply
    584,419.40x = 876,629.10 × 486,004.40
  4. Step 4: Simplify right side
    584,419.40x = 426,045,599,768.04
  5. Step 5: Solve for x
    x = 426,045,599,768.04/584,419.40
  6. Step 6: Final answer
    x = 729,006.60

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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.