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Finding the Fourth Proportional to 662,415.70, 993,677.55 and 283,339.30

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Solution

The fourth proportional to 662,415.70, 993,677.55 and 283,339.30 is: 425,032.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,415.70 : 993,677.55 = 283,339.30 : x
  2. Step 2: Convert to fraction form
    662,415.70/993,677.55 = 283,339.30/x
  3. Step 3: Cross multiply
    662,415.70x = 993,677.55 × 283,339.30
  4. Step 4: Simplify right side
    662,415.70x = 281,547,901,442.72
  5. Step 5: Solve for x
    x = 281,547,901,442.72/662,415.70
  6. Step 6: Final answer
    x = 425,032.05

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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.