Home / 712,891.53-1,069,254.09-286,410.13

Finding the Fourth Proportional to 712,891.53, 1,069,254.09 and 286,410.13

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Solution

The fourth proportional to 712,891.53, 1,069,254.09 and 286,410.13 is: 429,581.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,891.53 : 1,069,254.09 = 286,410.13 : x
  2. Step 2: Convert to fraction form
    712,891.53/1,069,254.09 = 286,410.13/x
  3. Step 3: Cross multiply
    712,891.53x = 1,069,254.09 × 286,410.13
  4. Step 4: Simplify right side
    712,891.53x = 306,245,202,919.93
  5. Step 5: Solve for x
    x = 306,245,202,919.93/712,891.53
  6. Step 6: Final answer
    x = 429,581.77

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Half scale
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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.