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Finding the Fourth Proportional to 698,270.16, 963,612.68 and 380,318.16

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Solution

The fourth proportional to 698,270.16, 963,612.68 and 380,318.16 is: 524,838.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,270.16 : 963,612.68 = 380,318.16 : x
  2. Step 2: Convert to fraction form
    698,270.16/963,612.68 = 380,318.16/x
  3. Step 3: Cross multiply
    698,270.16x = 963,612.68 × 380,318.16
  4. Step 4: Simplify right side
    698,270.16x = 366,479,401,410.27
  5. Step 5: Solve for x
    x = 366,479,401,410.27/698,270.16
  6. Step 6: Final answer
    x = 524,838.98

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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.