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Finding the Fourth Proportional to 669,036.76, 923,271.64 and 363,113.15

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Solution

The fourth proportional to 669,036.76, 923,271.64 and 363,113.15 is: 501,096.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,036.76 : 923,271.64 = 363,113.15 : x
  2. Step 2: Convert to fraction form
    669,036.76/923,271.64 = 363,113.15/x
  3. Step 3: Cross multiply
    669,036.76x = 923,271.64 × 363,113.15
  4. Step 4: Simplify right side
    669,036.76x = 335,252,072,227.26
  5. Step 5: Solve for x
    x = 335,252,072,227.26/669,036.76
  6. Step 6: Final answer
    x = 501,096.64

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Double scale
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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.