Home / 689,955.17-951,734.57-448,398.63

Finding the Fourth Proportional to 689,955.17, 951,734.57 and 448,398.63

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Solution

The fourth proportional to 689,955.17, 951,734.57 and 448,398.63 is: 618,527.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,955.17 : 951,734.57 = 448,398.63 : x
  2. Step 2: Convert to fraction form
    689,955.17/951,734.57 = 448,398.63/x
  3. Step 3: Cross multiply
    689,955.17x = 951,734.57 × 448,398.63
  4. Step 4: Simplify right side
    689,955.17x = 426,756,478,432.64
  5. Step 5: Solve for x
    x = 426,756,478,432.64/689,955.17
  6. Step 6: Final answer
    x = 618,527.84

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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.