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Finding the Fourth Proportional to 784,725, 1,083,249.58 and 530,420.64

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Solution

The fourth proportional to 784,725, 1,083,249.58 and 530,420.64 is: 732,202.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,725 : 1,083,249.58 = 530,420.64 : x
  2. Step 2: Convert to fraction form
    784,725/1,083,249.58 = 530,420.64/x
  3. Step 3: Cross multiply
    784,725x = 1,083,249.58 × 530,420.64
  4. Step 4: Simplify right side
    784,725x = 574,577,935,503.33
  5. Step 5: Solve for x
    x = 574,577,935,503.33/784,725
  6. Step 6: Final answer
    x = 732,202.92

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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.