Home / 771,111.29-1,064,133.45-431,579.54

Finding the Fourth Proportional to 771,111.29, 1,064,133.45 and 431,579.54

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Solution

The fourth proportional to 771,111.29, 1,064,133.45 and 431,579.54 is: 595,579.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,111.29 : 1,064,133.45 = 431,579.54 : x
  2. Step 2: Convert to fraction form
    771,111.29/1,064,133.45 = 431,579.54/x
  3. Step 3: Cross multiply
    771,111.29x = 1,064,133.45 × 431,579.54
  4. Step 4: Simplify right side
    771,111.29x = 459,258,227,509.95
  5. Step 5: Solve for x
    x = 459,258,227,509.95/771,111.29
  6. Step 6: Final answer
    x = 595,579.69

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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.