Home / 520,596.10-781,088.55-205,272.82

Finding the Fourth Proportional to 520,596.10, 781,088.55 and 205,272.82

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Solution

The fourth proportional to 520,596.10, 781,088.55 and 205,272.82 is: 307,985.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,596.10 : 781,088.55 = 205,272.82 : x
  2. Step 2: Convert to fraction form
    520,596.10/781,088.55 = 205,272.82/x
  3. Step 3: Cross multiply
    520,596.10x = 781,088.55 × 205,272.82
  4. Step 4: Simplify right side
    520,596.10x = 160,336,249,328.21
  5. Step 5: Solve for x
    x = 160,336,249,328.21/520,596.10
  6. Step 6: Final answer
    x = 307,985.88

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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.