Home / 529,148,422.77-730,265,725.20-317,463,219.80

Finding the Fourth Proportional to 529,148,422.77, 730,265,725.20 and 317,463,219.80

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Solution

The fourth proportional to 529,148,422.77, 730,265,725.20 and 317,463,219.80 is: 438,123,782.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,148,422.77 : 730,265,725.20 = 317,463,219.80 : x
  2. Step 2: Convert to fraction form
    529,148,422.77/730,265,725.20 = 317,463,219.80/x
  3. Step 3: Cross multiply
    529,148,422.77x = 730,265,725.20 × 317,463,219.80
  4. Step 4: Simplify right side
    529,148,422.77x = 231,832,508,431,574,016
  5. Step 5: Solve for x
    x = 231,832,508,431,574,016/529,148,422.77
  6. Step 6: Final answer
    x = 438,123,782.39

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Double scale
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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.