Home / 879,665.76-1,213,946.16-477,260.64

Finding the Fourth Proportional to 879,665.76, 1,213,946.16 and 477,260.64

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Solution

The fourth proportional to 879,665.76, 1,213,946.16 and 477,260.64 is: 658,623.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,665.76 : 1,213,946.16 = 477,260.64 : x
  2. Step 2: Convert to fraction form
    879,665.76/1,213,946.16 = 477,260.64/x
  3. Step 3: Cross multiply
    879,665.76x = 1,213,946.16 × 477,260.64
  4. Step 4: Simplify right side
    879,665.76x = 579,368,721,247.14
  5. Step 5: Solve for x
    x = 579,368,721,247.14/879,665.76
  6. Step 6: Final answer
    x = 658,623.70

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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.