Home / 783,531.40-1,175,297.10-384,428.20

Finding the Fourth Proportional to 783,531.40, 1,175,297.10 and 384,428.20

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Solution

The fourth proportional to 783,531.40, 1,175,297.10 and 384,428.20 is: 576,642.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,531.40 : 1,175,297.10 = 384,428.20 : x
  2. Step 2: Convert to fraction form
    783,531.40/1,175,297.10 = 384,428.20/x
  3. Step 3: Cross multiply
    783,531.40x = 1,175,297.10 × 384,428.20
  4. Step 4: Simplify right side
    783,531.40x = 451,817,348,618.22
  5. Step 5: Solve for x
    x = 451,817,348,618.22/783,531.40
  6. Step 6: Final answer
    x = 576,642.30

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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.