Home / 687,892.17-1,027,206.13-561,782.77

Finding the Fourth Proportional to 687,892.17, 1,027,206.13 and 561,782.77

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Solution

The fourth proportional to 687,892.17, 1,027,206.13 and 561,782.77 is: 838,891.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,892.17 : 1,027,206.13 = 561,782.77 : x
  2. Step 2: Convert to fraction form
    687,892.17/1,027,206.13 = 561,782.77/x
  3. Step 3: Cross multiply
    687,892.17x = 1,027,206.13 × 561,782.77
  4. Step 4: Simplify right side
    687,892.17x = 577,066,705,072.38
  5. Step 5: Solve for x
    x = 577,066,705,072.38/687,892.17
  6. Step 6: Final answer
    x = 838,891.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.