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Finding the Fourth Proportional to 607,866.60, 912,548.70 and 383,226.60

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Solution

The fourth proportional to 607,866.60, 912,548.70 and 383,226.60 is: 575,311.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,866.60 : 912,548.70 = 383,226.60 : x
  2. Step 2: Convert to fraction form
    607,866.60/912,548.70 = 383,226.60/x
  3. Step 3: Cross multiply
    607,866.60x = 912,548.70 × 383,226.60
  4. Step 4: Simplify right side
    607,866.60x = 349,712,935,635.42
  5. Step 5: Solve for x
    x = 349,712,935,635.42/607,866.60
  6. Step 6: Final answer
    x = 575,311.98

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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.