Home / 688,116.06-949,606.20-401,580.18

Finding the Fourth Proportional to 688,116.06, 949,606.20 and 401,580.18

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Solution

The fourth proportional to 688,116.06, 949,606.20 and 401,580.18 is: 554,184.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,116.06 : 949,606.20 = 401,580.18 : x
  2. Step 2: Convert to fraction form
    688,116.06/949,606.20 = 401,580.18/x
  3. Step 3: Cross multiply
    688,116.06x = 949,606.20 × 401,580.18
  4. Step 4: Simplify right side
    688,116.06x = 381,343,028,725.12
  5. Step 5: Solve for x
    x = 381,343,028,725.12/688,116.06
  6. Step 6: Final answer
    x = 554,184.17

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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.