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Finding the Fourth Proportional to 674,506.77, 930,821.76 and 368,583.15

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Solution

The fourth proportional to 674,506.77, 930,821.76 and 368,583.15 is: 508,646.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,506.77 : 930,821.76 = 368,583.15 : x
  2. Step 2: Convert to fraction form
    674,506.77/930,821.76 = 368,583.15/x
  3. Step 3: Cross multiply
    674,506.77x = 930,821.76 × 368,583.15
  4. Step 4: Simplify right side
    674,506.77x = 343,085,216,389.34
  5. Step 5: Solve for x
    x = 343,085,216,389.34/674,506.77
  6. Step 6: Final answer
    x = 508,646.07

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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.