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Finding the Fourth Proportional to 674,810.63, 931,238.85 and 368,888.34

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Solution

The fourth proportional to 674,810.63, 931,238.85 and 368,888.34 is: 509,066.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,810.63 : 931,238.85 = 368,888.34 : x
  2. Step 2: Convert to fraction form
    674,810.63/931,238.85 = 368,888.34/x
  3. Step 3: Cross multiply
    674,810.63x = 931,238.85 × 368,888.34
  4. Step 4: Simplify right side
    674,810.63x = 343,523,153,520.01
  5. Step 5: Solve for x
    x = 343,523,153,520.01/674,810.63
  6. Step 6: Final answer
    x = 509,066.01

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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.