Home / 1,038,858.78-1,558,332.72-407,909.28

Finding the Fourth Proportional to 1,038,858.78, 1,558,332.72 and 407,909.28

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Solution

The fourth proportional to 1,038,858.78, 1,558,332.72 and 407,909.28 is: 611,881.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,858.78 : 1,558,332.72 = 407,909.28 : x
  2. Step 2: Convert to fraction form
    1,038,858.78/1,558,332.72 = 407,909.28/x
  3. Step 3: Cross multiply
    1,038,858.78x = 1,558,332.72 × 407,909.28
  4. Step 4: Simplify right side
    1,038,858.78x = 635,658,377,815.64
  5. Step 5: Solve for x
    x = 635,658,377,815.64/1,038,858.78
  6. Step 6: Final answer
    x = 611,881.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.