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Finding the Fourth Proportional to 328,461.48, 453,533.38 and 257,045.00

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Solution

The fourth proportional to 328,461.48, 453,533.38 and 257,045.00 is: 354,922.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,461.48 : 453,533.38 = 257,045.00 : x
  2. Step 2: Convert to fraction form
    328,461.48/453,533.38 = 257,045.00/x
  3. Step 3: Cross multiply
    328,461.48x = 453,533.38 × 257,045.00
  4. Step 4: Simplify right side
    328,461.48x = 116,578,484,751.82
  5. Step 5: Solve for x
    x = 116,578,484,751.82/328,461.48
  6. Step 6: Final answer
    x = 354,922.85

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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.