Home / 291,008.04-401,587.02-163,683.78

Finding the Fourth Proportional to 291,008.04, 401,587.02 and 163,683.78

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Solution

The fourth proportional to 291,008.04, 401,587.02 and 163,683.78 is: 225,881.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,008.04 : 401,587.02 = 163,683.78 : x
  2. Step 2: Convert to fraction form
    291,008.04/401,587.02 = 163,683.78/x
  3. Step 3: Cross multiply
    291,008.04x = 401,587.02 × 163,683.78
  4. Step 4: Simplify right side
    291,008.04x = 65,733,281,432.54
  5. Step 5: Solve for x
    x = 65,733,281,432.54/291,008.04
  6. Step 6: Final answer
    x = 225,881.32

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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.