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Finding the Fourth Proportional to 623,375.57, 859,859.38 and 432,319.25

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Solution

The fourth proportional to 623,375.57, 859,859.38 and 432,319.25 is: 596,323.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,375.57 : 859,859.38 = 432,319.25 : x
  2. Step 2: Convert to fraction form
    623,375.57/859,859.38 = 432,319.25/x
  3. Step 3: Cross multiply
    623,375.57x = 859,859.38 × 432,319.25
  4. Step 4: Simplify right side
    623,375.57x = 371,733,764,957.11
  5. Step 5: Solve for x
    x = 371,733,764,957.11/623,375.57
  6. Step 6: Final answer
    x = 596,323.92

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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.