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Finding the Fourth Proportional to 579,219,004.40, 868,828,506.60 and 531,601,890.80

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Solution

The fourth proportional to 579,219,004.40, 868,828,506.60 and 531,601,890.80 is: 797,402,836.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,219,004.40 : 868,828,506.60 = 531,601,890.80 : x
  2. Step 2: Convert to fraction form
    579,219,004.40/868,828,506.60 = 531,601,890.80/x
  3. Step 3: Cross multiply
    579,219,004.40x = 868,828,506.60 × 531,601,890.80
  4. Step 4: Simplify right side
    579,219,004.40x = 461,870,876,889,500,288
  5. Step 5: Solve for x
    x = 461,870,876,889,500,288/579,219,004.40
  6. Step 6: Final answer
    x = 797,402,836.20

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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.