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Finding the Fourth Proportional to 406,944.70, 610,417.05 and 346,810.30

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Solution

The fourth proportional to 406,944.70, 610,417.05 and 346,810.30 is: 520,215.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,944.70 : 610,417.05 = 346,810.30 : x
  2. Step 2: Convert to fraction form
    406,944.70/610,417.05 = 346,810.30/x
  3. Step 3: Cross multiply
    406,944.70x = 610,417.05 × 346,810.30
  4. Step 4: Simplify right side
    406,944.70x = 211,698,920,235.62
  5. Step 5: Solve for x
    x = 211,698,920,235.62/406,944.70
  6. Step 6: Final answer
    x = 520,215.45

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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.