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Finding the Fourth Proportional to 530,745.16, 732,309.78 and 445,050.76

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Solution

The fourth proportional to 530,745.16, 732,309.78 and 445,050.76 is: 614,070.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,745.16 : 732,309.78 = 445,050.76 : x
  2. Step 2: Convert to fraction form
    530,745.16/732,309.78 = 445,050.76/x
  3. Step 3: Cross multiply
    530,745.16x = 732,309.78 × 445,050.76
  4. Step 4: Simplify right side
    530,745.16x = 325,915,024,144.43
  5. Step 5: Solve for x
    x = 325,915,024,144.43/530,745.16
  6. Step 6: Final answer
    x = 614,070.65

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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.