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Finding the Fourth Proportional to 556,944.18, 768,562.40 and 302,289.90

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Solution

The fourth proportional to 556,944.18, 768,562.40 and 302,289.90 is: 417,148.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,944.18 : 768,562.40 = 302,289.90 : x
  2. Step 2: Convert to fraction form
    556,944.18/768,562.40 = 302,289.90/x
  3. Step 3: Cross multiply
    556,944.18x = 768,562.40 × 302,289.90
  4. Step 4: Simplify right side
    556,944.18x = 232,328,651,039.76
  5. Step 5: Solve for x
    x = 232,328,651,039.76/556,944.18
  6. Step 6: Final answer
    x = 417,148.90

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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.