Home / 638,922.10-881,995.89-412,677.94

Finding the Fourth Proportional to 638,922.10, 881,995.89 and 412,677.94

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Solution

The fourth proportional to 638,922.10, 881,995.89 and 412,677.94 is: 569,678.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,922.10 : 881,995.89 = 412,677.94 : x
  2. Step 2: Convert to fraction form
    638,922.10/881,995.89 = 412,677.94/x
  3. Step 3: Cross multiply
    638,922.10x = 881,995.89 × 412,677.94
  4. Step 4: Simplify right side
    638,922.10x = 363,980,246,973.67
  5. Step 5: Solve for x
    x = 363,980,246,973.67/638,922.10
  6. Step 6: Final answer
    x = 569,678.60

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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.