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Finding the Fourth Proportional to 608,328.10, 912,421.11 and 187,567.78

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Solution

The fourth proportional to 608,328.10, 912,421.11 and 187,567.78 is: 281,329.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,328.10 : 912,421.11 = 187,567.78 : x
  2. Step 2: Convert to fraction form
    608,328.10/912,421.11 = 187,567.78/x
  3. Step 3: Cross multiply
    608,328.10x = 912,421.11 × 187,567.78
  4. Step 4: Simplify right side
    608,328.10x = 171,140,802,027.84
  5. Step 5: Solve for x
    x = 171,140,802,027.84/608,328.10
  6. Step 6: Final answer
    x = 281,329.77

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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.