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Finding the Fourth Proportional to 669,506.92, 923,533.86 and 401,079.40

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Solution

The fourth proportional to 669,506.92, 923,533.86 and 401,079.40 is: 553,258.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,506.92 : 923,533.86 = 401,079.40 : x
  2. Step 2: Convert to fraction form
    669,506.92/923,533.86 = 401,079.40/x
  3. Step 3: Cross multiply
    669,506.92x = 923,533.86 × 401,079.40
  4. Step 4: Simplify right side
    669,506.92x = 370,410,406,448.48
  5. Step 5: Solve for x
    x = 370,410,406,448.48/669,506.92
  6. Step 6: Final answer
    x = 553,258.52

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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.