Home / 657,844.36-907,825.20-356,038.36

Finding the Fourth Proportional to 657,844.36, 907,825.20 and 356,038.36

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Solution

The fourth proportional to 657,844.36, 907,825.20 and 356,038.36 is: 491,332.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,844.36 : 907,825.20 = 356,038.36 : x
  2. Step 2: Convert to fraction form
    657,844.36/907,825.20 = 356,038.36/x
  3. Step 3: Cross multiply
    657,844.36x = 907,825.20 × 356,038.36
  4. Step 4: Simplify right side
    657,844.36x = 323,220,595,374.67
  5. Step 5: Solve for x
    x = 323,220,595,374.67/657,844.36
  6. Step 6: Final answer
    x = 491,332.93

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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.