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Finding the Fourth Proportional to 674,547.22, 930,887.39 and 368,636.54

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Solution

The fourth proportional to 674,547.22, 930,887.39 and 368,636.54 is: 508,725.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,547.22 : 930,887.39 = 368,636.54 : x
  2. Step 2: Convert to fraction form
    674,547.22/930,887.39 = 368,636.54/x
  3. Step 3: Cross multiply
    674,547.22x = 930,887.39 × 368,636.54
  4. Step 4: Simplify right side
    674,547.22x = 343,159,109,828.04
  5. Step 5: Solve for x
    x = 343,159,109,828.04/674,547.22
  6. Step 6: Final answer
    x = 508,725.11

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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.