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Finding the Fourth Proportional to 670,261.79, 924,072.55 and 555,116.24

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Solution

The fourth proportional to 670,261.79, 924,072.55 and 555,116.24 is: 765,324.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,261.79 : 924,072.55 = 555,116.24 : x
  2. Step 2: Convert to fraction form
    670,261.79/924,072.55 = 555,116.24/x
  3. Step 3: Cross multiply
    670,261.79x = 924,072.55 × 555,116.24
  4. Step 4: Simplify right side
    670,261.79x = 512,967,678,290.22
  5. Step 5: Solve for x
    x = 512,967,678,290.22/670,261.79
  6. Step 6: Final answer
    x = 765,324.37

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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.