Home / 688,991.52-950,887.04-383,098.40

Finding the Fourth Proportional to 688,991.52, 950,887.04 and 383,098.40

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Solution

The fourth proportional to 688,991.52, 950,887.04 and 383,098.40 is: 528,719.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,991.52 : 950,887.04 = 383,098.40 : x
  2. Step 2: Convert to fraction form
    688,991.52/950,887.04 = 383,098.40/x
  3. Step 3: Cross multiply
    688,991.52x = 950,887.04 × 383,098.40
  4. Step 4: Simplify right side
    688,991.52x = 364,283,303,604.74
  5. Step 5: Solve for x
    x = 364,283,303,604.74/688,991.52
  6. Step 6: Final answer
    x = 528,719.57

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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.