Home / 858,215.12-1,184,364.05-495,632.39

Finding the Fourth Proportional to 858,215.12, 1,184,364.05 and 495,632.39

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Solution

The fourth proportional to 858,215.12, 1,184,364.05 and 495,632.39 is: 683,988.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,215.12 : 1,184,364.05 = 495,632.39 : x
  2. Step 2: Convert to fraction form
    858,215.12/1,184,364.05 = 495,632.39/x
  3. Step 3: Cross multiply
    858,215.12x = 1,184,364.05 × 495,632.39
  4. Step 4: Simplify right side
    858,215.12x = 587,009,176,331.60
  5. Step 5: Solve for x
    x = 587,009,176,331.60/858,215.12
  6. Step 6: Final answer
    x = 683,988.39

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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.