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Finding the Fourth Proportional to 346,689.70, 520,034.55 and 293,545.60

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Solution

The fourth proportional to 346,689.70, 520,034.55 and 293,545.60 is: 440,318.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,689.70 : 520,034.55 = 293,545.60 : x
  2. Step 2: Convert to fraction form
    346,689.70/520,034.55 = 293,545.60/x
  3. Step 3: Cross multiply
    346,689.70x = 520,034.55 × 293,545.60
  4. Step 4: Simplify right side
    346,689.70x = 152,653,854,000.48
  5. Step 5: Solve for x
    x = 152,653,854,000.48/346,689.70
  6. Step 6: Final answer
    x = 440,318.40

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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.