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Finding the Fourth Proportional to 683,064.56, 942,643.92 and 377,139.92

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Solution

The fourth proportional to 683,064.56, 942,643.92 and 377,139.92 is: 520,461.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,064.56 : 942,643.92 = 377,139.92 : x
  2. Step 2: Convert to fraction form
    683,064.56/942,643.92 = 377,139.92/x
  3. Step 3: Cross multiply
    683,064.56x = 942,643.92 × 377,139.92
  4. Step 4: Simplify right side
    683,064.56x = 355,508,652,577.29
  5. Step 5: Solve for x
    x = 355,508,652,577.29/683,064.56
  6. Step 6: Final answer
    x = 520,461.28

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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.