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Finding the Fourth Proportional to 841,457.32, 1,261,251 and 641,117.20

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Solution

The fourth proportional to 841,457.32, 1,261,251 and 641,117.20 is: 960,963.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    841,457.32 : 1,261,251 = 641,117.20 : x
  2. Step 2: Convert to fraction form
    841,457.32/1,261,251 = 641,117.20/x
  3. Step 3: Cross multiply
    841,457.32x = 1,261,251 × 641,117.20
  4. Step 4: Simplify right side
    841,457.32x = 808,609,709,617.20
  5. Step 5: Solve for x
    x = 808,609,709,617.20/841,457.32
  6. Step 6: Final answer
    x = 960,963.43

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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.