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Finding the Fourth Proportional to 437,368.32, 653,656.08 and 319,288.32

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Solution

The fourth proportional to 437,368.32, 653,656.08 and 319,288.32 is: 477,183.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,368.32 : 653,656.08 = 319,288.32 : x
  2. Step 2: Convert to fraction form
    437,368.32/653,656.08 = 319,288.32/x
  3. Step 3: Cross multiply
    437,368.32x = 653,656.08 × 319,288.32
  4. Step 4: Simplify right side
    437,368.32x = 208,704,751,640.99
  5. Step 5: Solve for x
    x = 208,704,751,640.99/437,368.32
  6. Step 6: Final answer
    x = 477,183.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.