Home / 808,857.30-1,214,284.35-509,337.30

Finding the Fourth Proportional to 808,857.30, 1,214,284.35 and 509,337.30

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Solution

The fourth proportional to 808,857.30, 1,214,284.35 and 509,337.30 is: 764,634.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,857.30 : 1,214,284.35 = 509,337.30 : x
  2. Step 2: Convert to fraction form
    808,857.30/1,214,284.35 = 509,337.30/x
  3. Step 3: Cross multiply
    808,857.30x = 1,214,284.35 × 509,337.30
  4. Step 4: Simplify right side
    808,857.30x = 618,480,312,261.26
  5. Step 5: Solve for x
    x = 618,480,312,261.26/808,857.30
  6. Step 6: Final answer
    x = 764,634.64

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Double scale
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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.