Home / 1,653,390.47-2,281,810.64-928,285.76

Finding the Fourth Proportional to 1,653,390.47, 2,281,810.64 and 928,285.76

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Solution

The fourth proportional to 1,653,390.47, 2,281,810.64 and 928,285.76 is: 1,281,108.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,653,390.47 : 2,281,810.64 = 928,285.76 : x
  2. Step 2: Convert to fraction form
    1,653,390.47/2,281,810.64 = 928,285.76/x
  3. Step 3: Cross multiply
    1,653,390.47x = 2,281,810.64 × 928,285.76
  4. Step 4: Simplify right side
    1,653,390.47x = 2,118,172,308,078.00
  5. Step 5: Solve for x
    x = 2,118,172,308,078.00/1,653,390.47
  6. Step 6: Final answer
    x = 1,281,108.34

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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.