Home / 639,184.07-881,358.78-522,533.46

Finding the Fourth Proportional to 639,184.07, 881,358.78 and 522,533.46

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Solution

The fourth proportional to 639,184.07, 881,358.78 and 522,533.46 is: 720,511.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,184.07 : 881,358.78 = 522,533.46 : x
  2. Step 2: Convert to fraction form
    639,184.07/881,358.78 = 522,533.46/x
  3. Step 3: Cross multiply
    639,184.07x = 881,358.78 × 522,533.46
  4. Step 4: Simplify right side
    639,184.07x = 460,539,452,814.78
  5. Step 5: Solve for x
    x = 460,539,452,814.78/639,184.07
  6. Step 6: Final answer
    x = 720,511.47

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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.