Home / 639,386.04-959,070.66-183,989.16

Finding the Fourth Proportional to 639,386.04, 959,070.66 and 183,989.16

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Solution

The fourth proportional to 639,386.04, 959,070.66 and 183,989.16 is: 275,981.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,386.04 : 959,070.66 = 183,989.16 : x
  2. Step 2: Convert to fraction form
    639,386.04/959,070.66 = 183,989.16/x
  3. Step 3: Cross multiply
    639,386.04x = 959,070.66 × 183,989.16
  4. Step 4: Simplify right side
    639,386.04x = 176,458,605,114.05
  5. Step 5: Solve for x
    x = 176,458,605,114.05/639,386.04
  6. Step 6: Final answer
    x = 275,981.32

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Double scale
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Similar ratio
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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.