Home / 957,705.84-1,321,642.62-528,001.20

Finding the Fourth Proportional to 957,705.84, 1,321,642.62 and 528,001.20

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Solution

The fourth proportional to 957,705.84, 1,321,642.62 and 528,001.20 is: 728,646.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    957,705.84 : 1,321,642.62 = 528,001.20 : x
  2. Step 2: Convert to fraction form
    957,705.84/1,321,642.62 = 528,001.20/x
  3. Step 3: Cross multiply
    957,705.84x = 1,321,642.62 × 528,001.20
  4. Step 4: Simplify right side
    957,705.84x = 697,828,889,331.14
  5. Step 5: Solve for x
    x = 697,828,889,331.14/957,705.84
  6. Step 6: Final answer
    x = 728,646.38

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Double scale
Find fourth proportional to 957,706.84, 1,321,644 and 528,002.20
Similar ratio
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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.