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Finding the Fourth Proportional to 613,330.40, 919,995.60 and 534,598.40

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Solution

The fourth proportional to 613,330.40, 919,995.60 and 534,598.40 is: 801,897.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,330.40 : 919,995.60 = 534,598.40 : x
  2. Step 2: Convert to fraction form
    613,330.40/919,995.60 = 534,598.40/x
  3. Step 3: Cross multiply
    613,330.40x = 919,995.60 × 534,598.40
  4. Step 4: Simplify right side
    613,330.40x = 491,828,175,767.04
  5. Step 5: Solve for x
    x = 491,828,175,767.04/613,330.40
  6. Step 6: Final answer
    x = 801,897.60

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.