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Finding the Fourth Proportional to 690,416.84, 953,069.82 and 464,193.56

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Solution

The fourth proportional to 690,416.84, 953,069.82 and 464,193.56 is: 640,785.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,416.84 : 953,069.82 = 464,193.56 : x
  2. Step 2: Convert to fraction form
    690,416.84/953,069.82 = 464,193.56/x
  3. Step 3: Cross multiply
    690,416.84x = 953,069.82 × 464,193.56
  4. Step 4: Simplify right side
    690,416.84x = 442,408,872,674.36
  5. Step 5: Solve for x
    x = 442,408,872,674.36/690,416.84
  6. Step 6: Final answer
    x = 640,785.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.