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Finding the Fourth Proportional to 614,003.15, 847,350.50 and 342,070.89

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Solution

The fourth proportional to 614,003.15, 847,350.50 and 342,070.89 is: 472,072.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,003.15 : 847,350.50 = 342,070.89 : x
  2. Step 2: Convert to fraction form
    614,003.15/847,350.50 = 342,070.89/x
  3. Step 3: Cross multiply
    614,003.15x = 847,350.50 × 342,070.89
  4. Step 4: Simplify right side
    614,003.15x = 289,853,937,966.59
  5. Step 5: Solve for x
    x = 289,853,937,966.59/614,003.15
  6. Step 6: Final answer
    x = 472,072.40

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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.