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Finding the Fourth Proportional to 530,705.90, 732,392.18 and 298,173.80

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Solution

The fourth proportional to 530,705.90, 732,392.18 and 298,173.80 is: 411,489.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,705.90 : 732,392.18 = 298,173.80 : x
  2. Step 2: Convert to fraction form
    530,705.90/732,392.18 = 298,173.80/x
  3. Step 3: Cross multiply
    530,705.90x = 732,392.18 × 298,173.80
  4. Step 4: Simplify right side
    530,705.90x = 218,380,154,248.05
  5. Step 5: Solve for x
    x = 218,380,154,248.05/530,705.90
  6. Step 6: Final answer
    x = 411,489.97

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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.