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Finding the Fourth Proportional to 709,507,269.42, 972,008,710.02 and 682,980,446.58

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Solution

The fourth proportional to 709,507,269.42, 972,008,710.02 and 682,980,446.58 is: 935,667,570.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,507,269.42 : 972,008,710.02 = 682,980,446.58 : x
  2. Step 2: Convert to fraction form
    709,507,269.42/972,008,710.02 = 682,980,446.58/x
  3. Step 3: Cross multiply
    709,507,269.42x = 972,008,710.02 × 682,980,446.58
  4. Step 4: Simplify right side
    709,507,269.42x = 663,862,942,849,109,376
  5. Step 5: Solve for x
    x = 663,862,942,849,109,376/709,507,269.42
  6. Step 6: Final answer
    x = 935,667,570.24

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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.