Home / 911,968.61-1,258,521.69-498,506.01

Finding the Fourth Proportional to 911,968.61, 1,258,521.69 and 498,506.01

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Solution

The fourth proportional to 911,968.61, 1,258,521.69 and 498,506.01 is: 687,941.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,968.61 : 1,258,521.69 = 498,506.01 : x
  2. Step 2: Convert to fraction form
    911,968.61/1,258,521.69 = 498,506.01/x
  3. Step 3: Cross multiply
    911,968.61x = 1,258,521.69 × 498,506.01
  4. Step 4: Simplify right side
    911,968.61x = 627,380,632,769.21
  5. Step 5: Solve for x
    x = 627,380,632,769.21/911,968.61
  6. Step 6: Final answer
    x = 687,941.04

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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.