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Finding the Fourth Proportional to 553,108.96, 763,058.64 and 338,180.32

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Solution

The fourth proportional to 553,108.96, 763,058.64 and 338,180.32 is: 466,547.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,108.96 : 763,058.64 = 338,180.32 : x
  2. Step 2: Convert to fraction form
    553,108.96/763,058.64 = 338,180.32/x
  3. Step 3: Cross multiply
    553,108.96x = 763,058.64 × 338,180.32
  4. Step 4: Simplify right side
    553,108.96x = 258,051,415,053.97
  5. Step 5: Solve for x
    x = 258,051,415,053.97/553,108.96
  6. Step 6: Final answer
    x = 466,547.16

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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.