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Finding the Fourth Proportional to 291,889.34, 402,807.12 and 157,753.34

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Solution

The fourth proportional to 291,889.34, 402,807.12 and 157,753.34 is: 217,699.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,889.34 : 402,807.12 = 157,753.34 : x
  2. Step 2: Convert to fraction form
    291,889.34/402,807.12 = 157,753.34/x
  3. Step 3: Cross multiply
    291,889.34x = 402,807.12 × 157,753.34
  4. Step 4: Simplify right side
    291,889.34x = 63,544,168,555.78
  5. Step 5: Solve for x
    x = 63,544,168,555.78/291,889.34
  6. Step 6: Final answer
    x = 217,699.52

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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.