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Finding the Fourth Proportional to 534,798.40, 802,197.60 and 519,246.40

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Solution

The fourth proportional to 534,798.40, 802,197.60 and 519,246.40 is: 778,869.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,798.40 : 802,197.60 = 519,246.40 : x
  2. Step 2: Convert to fraction form
    534,798.40/802,197.60 = 519,246.40/x
  3. Step 3: Cross multiply
    534,798.40x = 802,197.60 × 519,246.40
  4. Step 4: Simplify right side
    534,798.40x = 416,538,215,888.64
  5. Step 5: Solve for x
    x = 416,538,215,888.64/534,798.40
  6. Step 6: Final answer
    x = 778,869.60

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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.