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Finding the Fourth Proportional to 899,783.90, 1,348,639.05 and 366,955.10

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Solution

The fourth proportional to 899,783.90, 1,348,639.05 and 366,955.10 is: 550,009.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,783.90 : 1,348,639.05 = 366,955.10 : x
  2. Step 2: Convert to fraction form
    899,783.90/1,348,639.05 = 366,955.10/x
  3. Step 3: Cross multiply
    899,783.90x = 1,348,639.05 × 366,955.10
  4. Step 4: Simplify right side
    899,783.90x = 494,889,977,456.66
  5. Step 5: Solve for x
    x = 494,889,977,456.66/899,783.90
  6. Step 6: Final answer
    x = 550,009.82

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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.