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Finding the Fourth Proportional to 607,885.04, 838,921.12 and 403,616.16

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Solution

The fourth proportional to 607,885.04, 838,921.12 and 403,616.16 is: 557,016.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,885.04 : 838,921.12 = 403,616.16 : x
  2. Step 2: Convert to fraction form
    607,885.04/838,921.12 = 403,616.16/x
  3. Step 3: Cross multiply
    607,885.04x = 838,921.12 × 403,616.16
  4. Step 4: Simplify right side
    607,885.04x = 338,602,120,997.30
  5. Step 5: Solve for x
    x = 338,602,120,997.30/607,885.04
  6. Step 6: Final answer
    x = 557,016.70

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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.