Home / 771,543.63-1,064,747.36-440,392.88

Finding the Fourth Proportional to 771,543.63, 1,064,747.36 and 440,392.88

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Solution

The fourth proportional to 771,543.63, 1,064,747.36 and 440,392.88 is: 607,751.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,543.63 : 1,064,747.36 = 440,392.88 : x
  2. Step 2: Convert to fraction form
    771,543.63/1,064,747.36 = 440,392.88/x
  3. Step 3: Cross multiply
    771,543.63x = 1,064,747.36 × 440,392.88
  4. Step 4: Simplify right side
    771,543.63x = 468,907,160,105.65
  5. Step 5: Solve for x
    x = 468,907,160,105.65/771,543.63
  6. Step 6: Final answer
    x = 607,751.97

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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.