Home / 811,477.80-1,217,216.70-433,564.20

Finding the Fourth Proportional to 811,477.80, 1,217,216.70 and 433,564.20

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Solution

The fourth proportional to 811,477.80, 1,217,216.70 and 433,564.20 is: 650,346.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,477.80 : 1,217,216.70 = 433,564.20 : x
  2. Step 2: Convert to fraction form
    811,477.80/1,217,216.70 = 433,564.20/x
  3. Step 3: Cross multiply
    811,477.80x = 1,217,216.70 × 433,564.20
  4. Step 4: Simplify right side
    811,477.80x = 527,741,584,762.14
  5. Step 5: Solve for x
    x = 527,741,584,762.14/811,477.80
  6. Step 6: Final answer
    x = 650,346.30

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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.