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Finding the Fourth Proportional to 603,430.09, 832,901.13 and 345,451.57

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Solution

The fourth proportional to 603,430.09, 832,901.13 and 345,451.57 is: 476,819.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,430.09 : 832,901.13 = 345,451.57 : x
  2. Step 2: Convert to fraction form
    603,430.09/832,901.13 = 345,451.57/x
  3. Step 3: Cross multiply
    603,430.09x = 832,901.13 × 345,451.57
  4. Step 4: Simplify right side
    603,430.09x = 287,727,000,931.02
  5. Step 5: Solve for x
    x = 287,727,000,931.02/603,430.09
  6. Step 6: Final answer
    x = 476,819.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.