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Finding the Fourth Proportional to 798,784.20, 1,101,697.20 and 512,330.40

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Solution

The fourth proportional to 798,784.20, 1,101,697.20 and 512,330.40 is: 706,615.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    798,784.20 : 1,101,697.20 = 512,330.40 : x
  2. Step 2: Convert to fraction form
    798,784.20/1,101,697.20 = 512,330.40/x
  3. Step 3: Cross multiply
    798,784.20x = 1,101,697.20 × 512,330.40
  4. Step 4: Simplify right side
    798,784.20x = 564,432,967,154.88
  5. Step 5: Solve for x
    x = 564,432,967,154.88/798,784.20
  6. Step 6: Final answer
    x = 706,615.09

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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.