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Finding the Fourth Proportional to 697,964.65, 963,141.13 and 392,025.22

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Solution

The fourth proportional to 697,964.65, 963,141.13 and 392,025.22 is: 540,966.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,964.65 : 963,141.13 = 392,025.22 : x
  2. Step 2: Convert to fraction form
    697,964.65/963,141.13 = 392,025.22/x
  3. Step 3: Cross multiply
    697,964.65x = 963,141.13 × 392,025.22
  4. Step 4: Simplify right side
    697,964.65x = 377,575,611,461.48
  5. Step 5: Solve for x
    x = 377,575,611,461.48/697,964.65
  6. Step 6: Final answer
    x = 540,966.67

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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.