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Finding the Fourth Proportional to 623,814.80, 934,947 and 286,497.59

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Solution

The fourth proportional to 623,814.80, 934,947 and 286,497.59 is: 429,390.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,814.80 : 934,947 = 286,497.59 : x
  2. Step 2: Convert to fraction form
    623,814.80/934,947 = 286,497.59/x
  3. Step 3: Cross multiply
    623,814.80x = 934,947 × 286,497.59
  4. Step 4: Simplify right side
    623,814.80x = 267,860,062,277.73
  5. Step 5: Solve for x
    x = 267,860,062,277.73/623,814.80
  6. Step 6: Final answer
    x = 429,390.36

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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.