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Finding the Fourth Proportional to 870,576.16, 1,200,591.84 and 580,354.24

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Solution

The fourth proportional to 870,576.16, 1,200,591.84 and 580,354.24 is: 800,353.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,576.16 : 1,200,591.84 = 580,354.24 : x
  2. Step 2: Convert to fraction form
    870,576.16/1,200,591.84 = 580,354.24/x
  3. Step 3: Cross multiply
    870,576.16x = 1,200,591.84 × 580,354.24
  4. Step 4: Simplify right side
    870,576.16x = 696,768,564,853.40
  5. Step 5: Solve for x
    x = 696,768,564,853.40/870,576.16
  6. Step 6: Final answer
    x = 800,353.37

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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.