Home / 858,005.90-1,184,044.87-470,827.79

Finding the Fourth Proportional to 858,005.90, 1,184,044.87 and 470,827.79

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Solution

The fourth proportional to 858,005.90, 1,184,044.87 and 470,827.79 is: 649,740.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,005.90 : 1,184,044.87 = 470,827.79 : x
  2. Step 2: Convert to fraction form
    858,005.90/1,184,044.87 = 470,827.79/x
  3. Step 3: Cross multiply
    858,005.90x = 1,184,044.87 × 470,827.79
  4. Step 4: Simplify right side
    858,005.90x = 557,481,228,511.42
  5. Step 5: Solve for x
    x = 557,481,228,511.42/858,005.90
  6. Step 6: Final answer
    x = 649,740.55

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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.