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Finding the Fourth Proportional to 922,764.96, 1,384,139.14 and 291,678.98

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Solution

The fourth proportional to 922,764.96, 1,384,139.14 and 291,678.98 is: 437,515.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,764.96 : 1,384,139.14 = 291,678.98 : x
  2. Step 2: Convert to fraction form
    922,764.96/1,384,139.14 = 291,678.98/x
  3. Step 3: Cross multiply
    922,764.96x = 1,384,139.14 × 291,678.98
  4. Step 4: Simplify right side
    922,764.96x = 403,724,284,883.38
  5. Step 5: Solve for x
    x = 403,724,284,883.38/922,764.96
  6. Step 6: Final answer
    x = 437,515.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.