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Finding the Fourth Proportional to 576,315.30, 864,404.91 and 155,623.98

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Solution

The fourth proportional to 576,315.30, 864,404.91 and 155,623.98 is: 233,417.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,315.30 : 864,404.91 = 155,623.98 : x
  2. Step 2: Convert to fraction form
    576,315.30/864,404.91 = 155,623.98/x
  3. Step 3: Cross multiply
    576,315.30x = 864,404.91 × 155,623.98
  4. Step 4: Simplify right side
    576,315.30x = 134,522,132,425.74
  5. Step 5: Solve for x
    x = 134,522,132,425.74/576,315.30
  6. Step 6: Final answer
    x = 233,417.60

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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.