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Finding the Fourth Proportional to 368,000.70, 552,001.05 and 315,512.70

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Solution

The fourth proportional to 368,000.70, 552,001.05 and 315,512.70 is: 473,269.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,000.70 : 552,001.05 = 315,512.70 : x
  2. Step 2: Convert to fraction form
    368,000.70/552,001.05 = 315,512.70/x
  3. Step 3: Cross multiply
    368,000.70x = 552,001.05 × 315,512.70
  4. Step 4: Simplify right side
    368,000.70x = 174,163,341,688.34
  5. Step 5: Solve for x
    x = 174,163,341,688.34/368,000.70
  6. Step 6: Final answer
    x = 473,269.05

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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.