Home / 1,047,133.60-1,445,006.16-639,917.12

Finding the Fourth Proportional to 1,047,133.60, 1,445,006.16 and 639,917.12

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Solution

The fourth proportional to 1,047,133.60, 1,445,006.16 and 639,917.12 is: 883,062.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,047,133.60 : 1,445,006.16 = 639,917.12 : x
  2. Step 2: Convert to fraction form
    1,047,133.60/1,445,006.16 = 639,917.12/x
  3. Step 3: Cross multiply
    1,047,133.60x = 1,445,006.16 × 639,917.12
  4. Step 4: Simplify right side
    1,047,133.60x = 924,684,180,289.46
  5. Step 5: Solve for x
    x = 924,684,180,289.46/1,047,133.60
  6. Step 6: Final answer
    x = 883,062.28

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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.