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Finding the Fourth Proportional to 524,001.40, 785,483.70 and 257,543.80

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Solution

The fourth proportional to 524,001.40, 785,483.70 and 257,543.80 is: 386,060.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,001.40 : 785,483.70 = 257,543.80 : x
  2. Step 2: Convert to fraction form
    524,001.40/785,483.70 = 257,543.80/x
  3. Step 3: Cross multiply
    524,001.40x = 785,483.70 × 257,543.80
  4. Step 4: Simplify right side
    524,001.40x = 202,296,456,936.06
  5. Step 5: Solve for x
    x = 202,296,456,936.06/524,001.40
  6. Step 6: Final answer
    x = 386,060.91

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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.