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Finding the Fourth Proportional to 633,539.84, 874,285.12 and 347,070.24

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Solution

The fourth proportional to 633,539.84, 874,285.12 and 347,070.24 is: 478,957.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,539.84 : 874,285.12 = 347,070.24 : x
  2. Step 2: Convert to fraction form
    633,539.84/874,285.12 = 347,070.24/x
  3. Step 3: Cross multiply
    633,539.84x = 874,285.12 × 347,070.24
  4. Step 4: Simplify right side
    633,539.84x = 303,438,346,426.83
  5. Step 5: Solve for x
    x = 303,438,346,426.83/633,539.84
  6. Step 6: Final answer
    x = 478,957.01

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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.