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Finding the Fourth Proportional to 555,312.40, 832,968.60 and 275,376.40

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Solution

The fourth proportional to 555,312.40, 832,968.60 and 275,376.40 is: 413,064.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,312.40 : 832,968.60 = 275,376.40 : x
  2. Step 2: Convert to fraction form
    555,312.40/832,968.60 = 275,376.40/x
  3. Step 3: Cross multiply
    555,312.40x = 832,968.60 × 275,376.40
  4. Step 4: Simplify right side
    555,312.40x = 229,379,894,381.04
  5. Step 5: Solve for x
    x = 229,379,894,381.04/555,312.40
  6. Step 6: Final answer
    x = 413,064.60

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Similar ratio
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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.