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Finding the Fourth Proportional to 611,728.90, 917,593.35 and 555,632.35

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Solution

The fourth proportional to 611,728.90, 917,593.35 and 555,632.35 is: 833,448.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,728.90 : 917,593.35 = 555,632.35 : x
  2. Step 2: Convert to fraction form
    611,728.90/917,593.35 = 555,632.35/x
  3. Step 3: Cross multiply
    611,728.90x = 917,593.35 × 555,632.35
  4. Step 4: Simplify right side
    611,728.90x = 509,844,549,404.87
  5. Step 5: Solve for x
    x = 509,844,549,404.87/611,728.90
  6. Step 6: Final answer
    x = 833,448.53

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Similar ratio
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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.