Home / 677,476.41-934,784.87-401,783.19

Finding the Fourth Proportional to 677,476.41, 934,784.87 and 401,783.19

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Solution

The fourth proportional to 677,476.41, 934,784.87 and 401,783.19 is: 554,382.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,476.41 : 934,784.87 = 401,783.19 : x
  2. Step 2: Convert to fraction form
    677,476.41/934,784.87 = 401,783.19/x
  3. Step 3: Cross multiply
    677,476.41x = 934,784.87 × 401,783.19
  4. Step 4: Simplify right side
    677,476.41x = 375,580,845,023.42
  5. Step 5: Solve for x
    x = 375,580,845,023.42/677,476.41
  6. Step 6: Final answer
    x = 554,382.17

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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.