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Finding the Fourth Proportional to 383,574.48, 529,320.60 and 240,411.84

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Solution

The fourth proportional to 383,574.48, 529,320.60 and 240,411.84 is: 331,760.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,574.48 : 529,320.60 = 240,411.84 : x
  2. Step 2: Convert to fraction form
    383,574.48/529,320.60 = 240,411.84/x
  3. Step 3: Cross multiply
    383,574.48x = 529,320.60 × 240,411.84
  4. Step 4: Simplify right side
    383,574.48x = 127,254,939,395.90
  5. Step 5: Solve for x
    x = 127,254,939,395.90/383,574.48
  6. Step 6: Final answer
    x = 331,760.70

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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.