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Finding the Fourth Proportional to 622,780.84, 930,758.81 and 454,655.22

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Solution

The fourth proportional to 622,780.84, 930,758.81 and 454,655.22 is: 679,491.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,780.84 : 930,758.81 = 454,655.22 : x
  2. Step 2: Convert to fraction form
    622,780.84/930,758.81 = 454,655.22/x
  3. Step 3: Cross multiply
    622,780.84x = 930,758.81 × 454,655.22
  4. Step 4: Simplify right side
    622,780.84x = 423,174,351,527.49
  5. Step 5: Solve for x
    x = 423,174,351,527.49/622,780.84
  6. Step 6: Final answer
    x = 679,491.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.