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Finding the Fourth Proportional to 534,632.40, 801,948.60 and 219,315.60

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Solution

The fourth proportional to 534,632.40, 801,948.60 and 219,315.60 is: 328,973.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,632.40 : 801,948.60 = 219,315.60 : x
  2. Step 2: Convert to fraction form
    534,632.40/801,948.60 = 219,315.60/x
  3. Step 3: Cross multiply
    534,632.40x = 801,948.60 × 219,315.60
  4. Step 4: Simplify right side
    534,632.40x = 175,879,838,378.16
  5. Step 5: Solve for x
    x = 175,879,838,378.16/534,632.40
  6. Step 6: Final answer
    x = 328,973.40

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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.