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Finding the Fourth Proportional to 669,312.58, 923,646.26 and 363,382.90

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Solution

The fourth proportional to 669,312.58, 923,646.26 and 363,382.90 is: 501,465.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,312.58 : 923,646.26 = 363,382.90 : x
  2. Step 2: Convert to fraction form
    669,312.58/923,646.26 = 363,382.90/x
  3. Step 3: Cross multiply
    669,312.58x = 923,646.26 × 363,382.90
  4. Step 4: Simplify right side
    669,312.58x = 335,637,256,532.95
  5. Step 5: Solve for x
    x = 335,637,256,532.95/669,312.58
  6. Step 6: Final answer
    x = 501,465.63

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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.