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Finding the Fourth Proportional to 530,328.80, 731,870.24 and 300,895.76

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Solution

The fourth proportional to 530,328.80, 731,870.24 and 300,895.76 is: 415,245.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,328.80 : 731,870.24 = 300,895.76 : x
  2. Step 2: Convert to fraction form
    530,328.80/731,870.24 = 300,895.76/x
  3. Step 3: Cross multiply
    530,328.80x = 731,870.24 × 300,895.76
  4. Step 4: Simplify right side
    530,328.80x = 220,216,652,411.38
  5. Step 5: Solve for x
    x = 220,216,652,411.38/530,328.80
  6. Step 6: Final answer
    x = 415,245.51

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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.