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Finding the Fourth Proportional to 530,630.40, 795,427.20 and 474,643.20

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Solution

The fourth proportional to 530,630.40, 795,427.20 and 474,643.20 is: 711,501.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,630.40 : 795,427.20 = 474,643.20 : x
  2. Step 2: Convert to fraction form
    530,630.40/795,427.20 = 474,643.20/x
  3. Step 3: Cross multiply
    530,630.40x = 795,427.20 × 474,643.20
  4. Step 4: Simplify right side
    530,630.40x = 377,544,111,575.04
  5. Step 5: Solve for x
    x = 377,544,111,575.04/530,630.40
  6. Step 6: Final answer
    x = 711,501.10

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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.