Home / 628,776.84-943,165.20-155,466.30

Finding the Fourth Proportional to 628,776.84, 943,165.20 and 155,466.30

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Solution

The fourth proportional to 628,776.84, 943,165.20 and 155,466.30 is: 233,199.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,776.84 : 943,165.20 = 155,466.30 : x
  2. Step 2: Convert to fraction form
    628,776.84/943,165.20 = 155,466.30/x
  3. Step 3: Cross multiply
    628,776.84x = 943,165.20 × 155,466.30
  4. Step 4: Simplify right side
    628,776.84x = 146,630,403,932.76
  5. Step 5: Solve for x
    x = 146,630,403,932.76/628,776.84
  6. Step 6: Final answer
    x = 233,199.44

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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.