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Finding the Fourth Proportional to 613,880.40, 847,285.58 and 412,559.76

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Solution

The fourth proportional to 613,880.40, 847,285.58 and 412,559.76 is: 569,420.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,880.40 : 847,285.58 = 412,559.76 : x
  2. Step 2: Convert to fraction form
    613,880.40/847,285.58 = 412,559.76/x
  3. Step 3: Cross multiply
    613,880.40x = 847,285.58 × 412,559.76
  4. Step 4: Simplify right side
    613,880.40x = 349,555,935,536.26
  5. Step 5: Solve for x
    x = 349,555,935,536.26/613,880.40
  6. Step 6: Final answer
    x = 569,420.26

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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.