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Finding the Fourth Proportional to 556,369.70, 834,420.90 and 157,047.80

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Solution

The fourth proportional to 556,369.70, 834,420.90 and 157,047.80 is: 235,533.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,369.70 : 834,420.90 = 157,047.80 : x
  2. Step 2: Convert to fraction form
    556,369.70/834,420.90 = 157,047.80/x
  3. Step 3: Cross multiply
    556,369.70x = 834,420.90 × 157,047.80
  4. Step 4: Simplify right side
    556,369.70x = 131,043,966,619.02
  5. Step 5: Solve for x
    x = 131,043,966,619.02/556,369.70
  6. Step 6: Final answer
    x = 235,533.97

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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.