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Finding the Fourth Proportional to 291,554.19, 437,329.54 and 75,412.93

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Solution

The fourth proportional to 291,554.19, 437,329.54 and 75,412.93 is: 113,118.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,554.19 : 437,329.54 = 75,412.93 : x
  2. Step 2: Convert to fraction form
    291,554.19/437,329.54 = 75,412.93/x
  3. Step 3: Cross multiply
    291,554.19x = 437,329.54 × 75,412.93
  4. Step 4: Simplify right side
    291,554.19x = 32,980,301,744.21
  5. Step 5: Solve for x
    x = 32,980,301,744.21/291,554.19
  6. Step 6: Final answer
    x = 113,118.94

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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.