Home / 521,360.85-719,418.51-291,886.23

Finding the Fourth Proportional to 521,360.85, 719,418.51 and 291,886.23

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Solution

The fourth proportional to 521,360.85, 719,418.51 and 291,886.23 is: 402,769.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,360.85 : 719,418.51 = 291,886.23 : x
  2. Step 2: Convert to fraction form
    521,360.85/719,418.51 = 291,886.23/x
  3. Step 3: Cross multiply
    521,360.85x = 719,418.51 × 291,886.23
  4. Step 4: Simplify right side
    521,360.85x = 209,988,359,373.94
  5. Step 5: Solve for x
    x = 209,988,359,373.94/521,360.85
  6. Step 6: Final answer
    x = 402,769.71

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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.