Home / 615,579.16-849,513.64-386,146.22

Finding the Fourth Proportional to 615,579.16, 849,513.64 and 386,146.22

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Solution

The fourth proportional to 615,579.16, 849,513.64 and 386,146.22 is: 532,890.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,579.16 : 849,513.64 = 386,146.22 : x
  2. Step 2: Convert to fraction form
    615,579.16/849,513.64 = 386,146.22/x
  3. Step 3: Cross multiply
    615,579.16x = 849,513.64 × 386,146.22
  4. Step 4: Simplify right side
    615,579.16x = 328,036,480,924.44
  5. Step 5: Solve for x
    x = 328,036,480,924.44/615,579.16
  6. Step 6: Final answer
    x = 532,890.82

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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.