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Finding the Fourth Proportional to 419,491.35, 578,670.62 and 249,692.67

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Solution

The fourth proportional to 419,491.35, 578,670.62 and 249,692.67 is: 344,440.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,491.35 : 578,670.62 = 249,692.67 : x
  2. Step 2: Convert to fraction form
    419,491.35/578,670.62 = 249,692.67/x
  3. Step 3: Cross multiply
    419,491.35x = 578,670.62 × 249,692.67
  4. Step 4: Simplify right side
    419,491.35x = 144,489,810,909.89
  5. Step 5: Solve for x
    x = 144,489,810,909.89/419,491.35
  6. Step 6: Final answer
    x = 344,440.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.