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Finding the Fourth Proportional to 447,734.40, 671,601.60 and 346,257.60

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Solution

The fourth proportional to 447,734.40, 671,601.60 and 346,257.60 is: 519,386.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,734.40 : 671,601.60 = 346,257.60 : x
  2. Step 2: Convert to fraction form
    447,734.40/671,601.60 = 346,257.60/x
  3. Step 3: Cross multiply
    447,734.40x = 671,601.60 × 346,257.60
  4. Step 4: Simplify right side
    447,734.40x = 232,547,158,172.16
  5. Step 5: Solve for x
    x = 232,547,158,172.16/447,734.40
  6. Step 6: Final answer
    x = 519,386.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.