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Finding the Fourth Proportional to 670,017.39, 924,249.74 and 411,714.87

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Solution

The fourth proportional to 670,017.39, 924,249.74 and 411,714.87 is: 567,936.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,017.39 : 924,249.74 = 411,714.87 : x
  2. Step 2: Convert to fraction form
    670,017.39/924,249.74 = 411,714.87/x
  3. Step 3: Cross multiply
    670,017.39x = 924,249.74 × 411,714.87
  4. Step 4: Simplify right side
    670,017.39x = 380,527,359,493.06
  5. Step 5: Solve for x
    x = 380,527,359,493.06/670,017.39
  6. Step 6: Final answer
    x = 567,936.54

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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.