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Finding the Fourth Proportional to 633,904.40, 874,784.04 and 347,442.32

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Solution

The fourth proportional to 633,904.40, 874,784.04 and 347,442.32 is: 479,468.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,904.40 : 874,784.04 = 347,442.32 : x
  2. Step 2: Convert to fraction form
    633,904.40/874,784.04 = 347,442.32/x
  3. Step 3: Cross multiply
    633,904.40x = 874,784.04 × 347,442.32
  4. Step 4: Simplify right side
    633,904.40x = 303,936,996,356.57
  5. Step 5: Solve for x
    x = 303,936,996,356.57/633,904.40
  6. Step 6: Final answer
    x = 479,468.19

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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.