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Finding the Fourth Proportional to 564,627.94, 779,187.88 and 309,995.52

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Solution

The fourth proportional to 564,627.94, 779,187.88 and 309,995.52 is: 427,794.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,627.94 : 779,187.88 = 309,995.52 : x
  2. Step 2: Convert to fraction form
    564,627.94/779,187.88 = 309,995.52/x
  3. Step 3: Cross multiply
    564,627.94x = 779,187.88 × 309,995.52
  4. Step 4: Simplify right side
    564,627.94x = 241,544,752,038.30
  5. Step 5: Solve for x
    x = 241,544,752,038.30/564,627.94
  6. Step 6: Final answer
    x = 427,794.54

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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.