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Finding the Fourth Proportional to 623,795.84, 860,838.81 and 365,621.30

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Solution

The fourth proportional to 623,795.84, 860,838.81 and 365,621.30 is: 504,557.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,795.84 : 860,838.81 = 365,621.30 : x
  2. Step 2: Convert to fraction form
    623,795.84/860,838.81 = 365,621.30/x
  3. Step 3: Cross multiply
    623,795.84x = 860,838.81 × 365,621.30
  4. Step 4: Simplify right side
    623,795.84x = 314,741,004,802.65
  5. Step 5: Solve for x
    x = 314,741,004,802.65/623,795.84
  6. Step 6: Final answer
    x = 504,557.72

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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.