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Finding the Fourth Proportional to 610,465.80, 913,106.70 and 547,739.40

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Solution

The fourth proportional to 610,465.80, 913,106.70 and 547,739.40 is: 819,283.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,465.80 : 913,106.70 = 547,739.40 : x
  2. Step 2: Convert to fraction form
    610,465.80/913,106.70 = 547,739.40/x
  3. Step 3: Cross multiply
    610,465.80x = 913,106.70 × 547,739.40
  4. Step 4: Simplify right side
    610,465.80x = 500,144,515,993.98
  5. Step 5: Solve for x
    x = 500,144,515,993.98/610,465.80
  6. Step 6: Final answer
    x = 819,283.43

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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.