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Finding the Fourth Proportional to 880,772.40, 1,321,201.80 and 460,868.40

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Solution

The fourth proportional to 880,772.40, 1,321,201.80 and 460,868.40 is: 691,325.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,772.40 : 1,321,201.80 = 460,868.40 : x
  2. Step 2: Convert to fraction form
    880,772.40/1,321,201.80 = 460,868.40/x
  3. Step 3: Cross multiply
    880,772.40x = 1,321,201.80 × 460,868.40
  4. Step 4: Simplify right side
    880,772.40x = 608,900,159,643.12
  5. Step 5: Solve for x
    x = 608,900,159,643.12/880,772.40
  6. Step 6: Final answer
    x = 691,325.20

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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.