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Finding the Fourth Proportional to 462,173.20, 691,877.40 and 434,832.40

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Solution

The fourth proportional to 462,173.20, 691,877.40 and 434,832.40 is: 650,947.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,173.20 : 691,877.40 = 434,832.40 : x
  2. Step 2: Convert to fraction form
    462,173.20/691,877.40 = 434,832.40/x
  3. Step 3: Cross multiply
    462,173.20x = 691,877.40 × 434,832.40
  4. Step 4: Simplify right side
    462,173.20x = 300,850,710,347.76
  5. Step 5: Solve for x
    x = 300,850,710,347.76/462,173.20
  6. Step 6: Final answer
    x = 650,947.98

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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.