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Finding the Fourth Proportional to 655,610.70, 983,416.05 and 578,628.30

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Solution

The fourth proportional to 655,610.70, 983,416.05 and 578,628.30 is: 867,942.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,610.70 : 983,416.05 = 578,628.30 : x
  2. Step 2: Convert to fraction form
    655,610.70/983,416.05 = 578,628.30/x
  3. Step 3: Cross multiply
    655,610.70x = 983,416.05 × 578,628.30
  4. Step 4: Simplify right side
    655,610.70x = 569,032,357,204.22
  5. Step 5: Solve for x
    x = 569,032,357,204.22/655,610.70
  6. Step 6: Final answer
    x = 867,942.45

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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.