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Finding the Fourth Proportional to 720,020.40, 1,078,475.40 and 595,604.40

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Solution

The fourth proportional to 720,020.40, 1,078,475.40 and 595,604.40 is: 892,120.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,020.40 : 1,078,475.40 = 595,604.40 : x
  2. Step 2: Convert to fraction form
    720,020.40/1,078,475.40 = 595,604.40/x
  3. Step 3: Cross multiply
    720,020.40x = 1,078,475.40 × 595,604.40
  4. Step 4: Simplify right side
    720,020.40x = 642,344,693,531.76
  5. Step 5: Solve for x
    x = 642,344,693,531.76/720,020.40
  6. Step 6: Final answer
    x = 892,120.13

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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.