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Finding the Fourth Proportional to 662,296,510.80, 991,292,430.15 and 662,296,510.80

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Solution

The fourth proportional to 662,296,510.80, 991,292,430.15 and 662,296,510.80 is: 991,292,430.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,296,510.80 : 991,292,430.15 = 662,296,510.80 : x
  2. Step 2: Convert to fraction form
    662,296,510.80/991,292,430.15 = 662,296,510.80/x
  3. Step 3: Cross multiply
    662,296,510.80x = 991,292,430.15 × 662,296,510.80
  4. Step 4: Simplify right side
    662,296,510.80x = 656,529,517,670,797,696
  5. Step 5: Solve for x
    x = 656,529,517,670,797,696/662,296,510.80
  6. Step 6: Final answer
    x = 991,292,430.15

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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.