Home / 771,331.57-1,064,437.56-469,525.57

Finding the Fourth Proportional to 771,331.57, 1,064,437.56 and 469,525.57

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Solution

The fourth proportional to 771,331.57, 1,064,437.56 and 469,525.57 is: 647,945.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,331.57 : 1,064,437.56 = 469,525.57 : x
  2. Step 2: Convert to fraction form
    771,331.57/1,064,437.56 = 469,525.57/x
  3. Step 3: Cross multiply
    771,331.57x = 1,064,437.56 × 469,525.57
  4. Step 4: Simplify right side
    771,331.57x = 499,780,652,088.41
  5. Step 5: Solve for x
    x = 499,780,652,088.41/771,331.57
  6. Step 6: Final answer
    x = 647,945.28

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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.