Home / 734,841.54-1,014,139.90-412,572.78

Finding the Fourth Proportional to 734,841.54, 1,014,139.90 and 412,572.78

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Solution

The fourth proportional to 734,841.54, 1,014,139.90 and 412,572.78 is: 569,383.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    734,841.54 : 1,014,139.90 = 412,572.78 : x
  2. Step 2: Convert to fraction form
    734,841.54/1,014,139.90 = 412,572.78/x
  3. Step 3: Cross multiply
    734,841.54x = 1,014,139.90 × 412,572.78
  4. Step 4: Simplify right side
    734,841.54x = 418,406,517,851.92
  5. Step 5: Solve for x
    x = 418,406,517,851.92/734,841.54
  6. Step 6: Final answer
    x = 569,383.32

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.