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Finding the Fourth Proportional to 346,712.70, 520,069.06 and 307,346.70

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Solution

The fourth proportional to 346,712.70, 520,069.06 and 307,346.70 is: 461,020.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,712.70 : 520,069.06 = 307,346.70 : x
  2. Step 2: Convert to fraction form
    346,712.70/520,069.06 = 307,346.70/x
  3. Step 3: Cross multiply
    346,712.70x = 520,069.06 × 307,346.70
  4. Step 4: Simplify right side
    346,712.70x = 159,841,509,363.10
  5. Step 5: Solve for x
    x = 159,841,509,363.10/346,712.70
  6. Step 6: Final answer
    x = 461,020.06

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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.