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Finding the Fourth Proportional to 671,348.10, 926,794.26 and 442,053.30

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Solution

The fourth proportional to 671,348.10, 926,794.26 and 442,053.30 is: 610,253.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,348.10 : 926,794.26 = 442,053.30 : x
  2. Step 2: Convert to fraction form
    671,348.10/926,794.26 = 442,053.30/x
  3. Step 3: Cross multiply
    671,348.10x = 926,794.26 × 442,053.30
  4. Step 4: Simplify right side
    671,348.10x = 409,692,461,054.06
  5. Step 5: Solve for x
    x = 409,692,461,054.06/671,348.10
  6. Step 6: Final answer
    x = 610,253.40

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Double scale
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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.