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Finding the Fourth Proportional to 655,699.20, 983,548.80 and 597,638.40

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Solution

The fourth proportional to 655,699.20, 983,548.80 and 597,638.40 is: 896,457.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,699.20 : 983,548.80 = 597,638.40 : x
  2. Step 2: Convert to fraction form
    655,699.20/983,548.80 = 597,638.40/x
  3. Step 3: Cross multiply
    655,699.20x = 983,548.80 × 597,638.40
  4. Step 4: Simplify right side
    655,699.20x = 587,806,531,153.92
  5. Step 5: Solve for x
    x = 587,806,531,153.92/655,699.20
  6. Step 6: Final answer
    x = 896,457.60

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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.