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Finding the Fourth Proportional to 674,946, 931,444.92 and 373,159.44

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Solution

The fourth proportional to 674,946, 931,444.92 and 373,159.44 is: 514,970.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,946 : 931,444.92 = 373,159.44 : x
  2. Step 2: Convert to fraction form
    674,946/931,444.92 = 373,159.44/x
  3. Step 3: Cross multiply
    674,946x = 931,444.92 × 373,159.44
  4. Step 4: Simplify right side
    674,946x = 347,577,464,738.05
  5. Step 5: Solve for x
    x = 347,577,464,738.05/674,946
  6. Step 6: Final answer
    x = 514,970.78

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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.