Home / 806,564.70-1,209,847.05-245,598.30

Finding the Fourth Proportional to 806,564.70, 1,209,847.05 and 245,598.30

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Solution

The fourth proportional to 806,564.70, 1,209,847.05 and 245,598.30 is: 368,397.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,564.70 : 1,209,847.05 = 245,598.30 : x
  2. Step 2: Convert to fraction form
    806,564.70/1,209,847.05 = 245,598.30/x
  3. Step 3: Cross multiply
    806,564.70x = 1,209,847.05 × 245,598.30
  4. Step 4: Simplify right side
    806,564.70x = 297,136,378,740.02
  5. Step 5: Solve for x
    x = 297,136,378,740.02/806,564.70
  6. Step 6: Final answer
    x = 368,397.45

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Double scale
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Similar ratio
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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.