Home / 628,915.05-943,438.01-173,506.30

Finding the Fourth Proportional to 628,915.05, 943,438.01 and 173,506.30

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Solution

The fourth proportional to 628,915.05, 943,438.01 and 173,506.30 is: 260,277.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,915.05 : 943,438.01 = 173,506.30 : x
  2. Step 2: Convert to fraction form
    628,915.05/943,438.01 = 173,506.30/x
  3. Step 3: Cross multiply
    628,915.05x = 943,438.01 × 173,506.30
  4. Step 4: Simplify right side
    628,915.05x = 163,692,438,801.54
  5. Step 5: Solve for x
    x = 163,692,438,801.54/628,915.05
  6. Step 6: Final answer
    x = 260,277.50

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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.