Home / 936,133.72-1,291,860.62-506,412.78

Finding the Fourth Proportional to 936,133.72, 1,291,860.62 and 506,412.78

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Solution

The fourth proportional to 936,133.72, 1,291,860.62 and 506,412.78 is: 698,847.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    936,133.72 : 1,291,860.62 = 506,412.78 : x
  2. Step 2: Convert to fraction form
    936,133.72/1,291,860.62 = 506,412.78/x
  3. Step 3: Cross multiply
    936,133.72x = 1,291,860.62 × 506,412.78
  4. Step 4: Simplify right side
    936,133.72x = 654,214,727,946.72
  5. Step 5: Solve for x
    x = 654,214,727,946.72/936,133.72
  6. Step 6: Final answer
    x = 698,847.52

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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.