Home / 864,005.90-1,296,008.85-528,082.70

Finding the Fourth Proportional to 864,005.90, 1,296,008.85 and 528,082.70

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Solution

The fourth proportional to 864,005.90, 1,296,008.85 and 528,082.70 is: 792,124.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,005.90 : 1,296,008.85 = 528,082.70 : x
  2. Step 2: Convert to fraction form
    864,005.90/1,296,008.85 = 528,082.70/x
  3. Step 3: Cross multiply
    864,005.90x = 1,296,008.85 × 528,082.70
  4. Step 4: Simplify right side
    864,005.90x = 684,399,852,731.90
  5. Step 5: Solve for x
    x = 684,399,852,731.90/864,005.90
  6. Step 6: Final answer
    x = 792,124.05

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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.