Home / 640,836.20-961,254.30-167,569.40

Finding the Fourth Proportional to 640,836.20, 961,254.30 and 167,569.40

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Solution

The fourth proportional to 640,836.20, 961,254.30 and 167,569.40 is: 251,354.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,836.20 : 961,254.30 = 167,569.40 : x
  2. Step 2: Convert to fraction form
    640,836.20/961,254.30 = 167,569.40/x
  3. Step 3: Cross multiply
    640,836.20x = 961,254.30 × 167,569.40
  4. Step 4: Simplify right side
    640,836.20x = 161,076,806,298.42
  5. Step 5: Solve for x
    x = 161,076,806,298.42/640,836.20
  6. Step 6: Final answer
    x = 251,354.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.