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Finding the Fourth Proportional to 569,947.60, 787,196.91 and 455,622.18

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Solution

The fourth proportional to 569,947.60, 787,196.91 and 455,622.18 is: 629,293.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,947.60 : 787,196.91 = 455,622.18 : x
  2. Step 2: Convert to fraction form
    569,947.60/787,196.91 = 455,622.18/x
  3. Step 3: Cross multiply
    569,947.60x = 787,196.91 × 455,622.18
  4. Step 4: Simplify right side
    569,947.60x = 358,664,372,223.46
  5. Step 5: Solve for x
    x = 358,664,372,223.46/569,947.60
  6. Step 6: Final answer
    x = 629,293.59

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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.