Home / 1,009,402.17-1,392,623.25-647,025.85

Finding the Fourth Proportional to 1,009,402.17, 1,392,623.25 and 647,025.85

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Solution

The fourth proportional to 1,009,402.17, 1,392,623.25 and 647,025.85 is: 892,670.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,009,402.17 : 1,392,623.25 = 647,025.85 : x
  2. Step 2: Convert to fraction form
    1,009,402.17/1,392,623.25 = 647,025.85/x
  3. Step 3: Cross multiply
    1,009,402.17x = 1,392,623.25 × 647,025.85
  4. Step 4: Simplify right side
    1,009,402.17x = 901,063,235,097.90
  5. Step 5: Solve for x
    x = 901,063,235,097.90/1,009,402.17
  6. Step 6: Final answer
    x = 892,670.20

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Double scale
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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.