Home / 692,890.56-956,331.36-406,560.96

Finding the Fourth Proportional to 692,890.56, 956,331.36 and 406,560.96

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Solution

The fourth proportional to 692,890.56, 956,331.36 and 406,560.96 is: 561,137.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,890.56 : 956,331.36 = 406,560.96 : x
  2. Step 2: Convert to fraction form
    692,890.56/956,331.36 = 406,560.96/x
  3. Step 3: Cross multiply
    692,890.56x = 956,331.36 × 406,560.96
  4. Step 4: Simplify right side
    692,890.56x = 388,806,995,799.71
  5. Step 5: Solve for x
    x = 388,806,995,799.71/692,890.56
  6. Step 6: Final answer
    x = 561,137.67

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Double scale
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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.