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Finding the Fourth Proportional to 521,323.85, 783,152.18 and 500,069.45

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Solution

The fourth proportional to 521,323.85, 783,152.18 and 500,069.45 is: 751,223.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,323.85 : 783,152.18 = 500,069.45 : x
  2. Step 2: Convert to fraction form
    521,323.85/783,152.18 = 500,069.45/x
  3. Step 3: Cross multiply
    521,323.85x = 783,152.18 × 500,069.45
  4. Step 4: Simplify right side
    521,323.85x = 391,630,477,418.55
  5. Step 5: Solve for x
    x = 391,630,477,418.55/521,323.85
  6. Step 6: Final answer
    x = 751,223.02

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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.