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Finding the Fourth Proportional to 447,106.51, 616,689.71 and 274,798.25

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Solution

The fourth proportional to 447,106.51, 616,689.71 and 274,798.25 is: 379,026.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,106.51 : 616,689.71 = 274,798.25 : x
  2. Step 2: Convert to fraction form
    447,106.51/616,689.71 = 274,798.25/x
  3. Step 3: Cross multiply
    447,106.51x = 616,689.71 × 274,798.25
  4. Step 4: Simplify right side
    447,106.51x = 169,465,248,643.57
  5. Step 5: Solve for x
    x = 169,465,248,643.57/447,106.51
  6. Step 6: Final answer
    x = 379,026.58

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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.