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Finding the Fourth Proportional to 867,407.34, 1,196,996.40 and 480,240

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Solution

The fourth proportional to 867,407.34, 1,196,996.40 and 480,240 is: 662,716.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,407.34 : 1,196,996.40 = 480,240 : x
  2. Step 2: Convert to fraction form
    867,407.34/1,196,996.40 = 480,240/x
  3. Step 3: Cross multiply
    867,407.34x = 1,196,996.40 × 480,240
  4. Step 4: Simplify right side
    867,407.34x = 574,845,551,136
  5. Step 5: Solve for x
    x = 574,845,551,136/867,407.34
  6. Step 6: Final answer
    x = 662,716.96

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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.