Home / 447,228.90-671,154.40-289,065.06

Finding the Fourth Proportional to 447,228.90, 671,154.40 and 289,065.06

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Solution

The fourth proportional to 447,228.90, 671,154.40 and 289,065.06 is: 433,798.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,228.90 : 671,154.40 = 289,065.06 : x
  2. Step 2: Convert to fraction form
    447,228.90/671,154.40 = 289,065.06/x
  3. Step 3: Cross multiply
    447,228.90x = 671,154.40 × 289,065.06
  4. Step 4: Simplify right side
    447,228.90x = 194,007,286,905.26
  5. Step 5: Solve for x
    x = 194,007,286,905.26/447,228.90
  6. Step 6: Final answer
    x = 433,798.64

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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.