Home / 657,056.76-906,738.16-370,576.20

Finding the Fourth Proportional to 657,056.76, 906,738.16 and 370,576.20

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Solution

The fourth proportional to 657,056.76, 906,738.16 and 370,576.20 is: 511,395.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,056.76 : 906,738.16 = 370,576.20 : x
  2. Step 2: Convert to fraction form
    657,056.76/906,738.16 = 370,576.20/x
  3. Step 3: Cross multiply
    657,056.76x = 906,738.16 × 370,576.20
  4. Step 4: Simplify right side
    657,056.76x = 336,015,581,727.79
  5. Step 5: Solve for x
    x = 336,015,581,727.79/657,056.76
  6. Step 6: Final answer
    x = 511,395.06

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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.