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Finding the Fourth Proportional to 530,199.33, 731,653.11 and 288,482.82

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Solution

The fourth proportional to 530,199.33, 731,653.11 and 288,482.82 is: 398,094.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,199.33 : 731,653.11 = 288,482.82 : x
  2. Step 2: Convert to fraction form
    530,199.33/731,653.11 = 288,482.82/x
  3. Step 3: Cross multiply
    530,199.33x = 731,653.11 × 288,482.82
  4. Step 4: Simplify right side
    530,199.33x = 211,069,352,434.57
  5. Step 5: Solve for x
    x = 211,069,352,434.57/530,199.33
  6. Step 6: Final answer
    x = 398,094.34

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