Home / 386,799.04-533,983.08-300,565.36

Finding the Fourth Proportional to 386,799.04, 533,983.08 and 300,565.36

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Solution

The fourth proportional to 386,799.04, 533,983.08 and 300,565.36 is: 414,935.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,799.04 : 533,983.08 = 300,565.36 : x
  2. Step 2: Convert to fraction form
    386,799.04/533,983.08 = 300,565.36/x
  3. Step 3: Cross multiply
    386,799.04x = 533,983.08 × 300,565.36
  4. Step 4: Simplify right side
    386,799.04x = 160,496,816,674.11
  5. Step 5: Solve for x
    x = 160,496,816,674.11/386,799.04
  6. Step 6: Final answer
    x = 414,935.92

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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.