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Finding the Fourth Proportional to 520,000.58, 717,604.40 and 290,567.54

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Solution

The fourth proportional to 520,000.58, 717,604.40 and 290,567.54 is: 400,985.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,000.58 : 717,604.40 = 290,567.54 : x
  2. Step 2: Convert to fraction form
    520,000.58/717,604.40 = 290,567.54/x
  3. Step 3: Cross multiply
    520,000.58x = 717,604.40 × 290,567.54
  4. Step 4: Simplify right side
    520,000.58x = 208,512,542,050.64
  5. Step 5: Solve for x
    x = 208,512,542,050.64/520,000.58
  6. Step 6: Final answer
    x = 400,985.21

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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.