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Finding the Fourth Proportional to 296,922.70, 445,384.05 and 260,058.70

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Solution

The fourth proportional to 296,922.70, 445,384.05 and 260,058.70 is: 390,088.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,922.70 : 445,384.05 = 260,058.70 : x
  2. Step 2: Convert to fraction form
    296,922.70/445,384.05 = 260,058.70/x
  3. Step 3: Cross multiply
    296,922.70x = 445,384.05 × 260,058.70
  4. Step 4: Simplify right side
    296,922.70x = 115,825,997,043.74
  5. Step 5: Solve for x
    x = 115,825,997,043.74/296,922.70
  6. Step 6: Final answer
    x = 390,088.05

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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.