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Finding the Fourth Proportional to 623,841.12, 860,886.36 and 369,196.56

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Solution

The fourth proportional to 623,841.12, 860,886.36 and 369,196.56 is: 509,482.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,841.12 : 860,886.36 = 369,196.56 : x
  2. Step 2: Convert to fraction form
    623,841.12/860,886.36 = 369,196.56/x
  3. Step 3: Cross multiply
    623,841.12x = 860,886.36 × 369,196.56
  4. Step 4: Simplify right side
    623,841.12x = 317,836,282,662.92
  5. Step 5: Solve for x
    x = 317,836,282,662.92/623,841.12
  6. Step 6: Final answer
    x = 509,482.74

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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.