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Finding the Fourth Proportional to 662,551.80, 993,827.70 and 628,337.40

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Solution

The fourth proportional to 662,551.80, 993,827.70 and 628,337.40 is: 942,506.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,551.80 : 993,827.70 = 628,337.40 : x
  2. Step 2: Convert to fraction form
    662,551.80/993,827.70 = 628,337.40/x
  3. Step 3: Cross multiply
    662,551.80x = 993,827.70 × 628,337.40
  4. Step 4: Simplify right side
    662,551.80x = 624,459,113,065.98
  5. Step 5: Solve for x
    x = 624,459,113,065.98/662,551.80
  6. Step 6: Final answer
    x = 942,506.10

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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.