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Finding the Fourth Proportional to 613,334.40, 920,001.60 and 534,602.40

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Solution

The fourth proportional to 613,334.40, 920,001.60 and 534,602.40 is: 801,903.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,334.40 : 920,001.60 = 534,602.40 : x
  2. Step 2: Convert to fraction form
    613,334.40/920,001.60 = 534,602.40/x
  3. Step 3: Cross multiply
    613,334.40x = 920,001.60 × 534,602.40
  4. Step 4: Simplify right side
    613,334.40x = 491,835,063,363.84
  5. Step 5: Solve for x
    x = 491,835,063,363.84/613,334.40
  6. Step 6: Final answer
    x = 801,903.60

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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.