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Finding the Fourth Proportional to 709,504,582.95, 972,005,041.28 and 682,977,760.11

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Solution

The fourth proportional to 709,504,582.95, 972,005,041.28 and 682,977,760.11 is: 935,663,901.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,504,582.95 : 972,005,041.28 = 682,977,760.11 : x
  2. Step 2: Convert to fraction form
    709,504,582.95/972,005,041.28 = 682,977,760.11/x
  3. Step 3: Cross multiply
    709,504,582.95x = 972,005,041.28 × 682,977,760.11
  4. Step 4: Simplify right side
    709,504,582.95x = 663,857,825,910,749,952
  5. Step 5: Solve for x
    x = 663,857,825,910,749,952/709,504,582.95
  6. Step 6: Final answer
    x = 935,663,901.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.