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Finding the Fourth Proportional to 564,711.88, 779,313.54 and 310,060.84

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Solution

The fourth proportional to 564,711.88, 779,313.54 and 310,060.84 is: 427,890.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,711.88 : 779,313.54 = 310,060.84 : x
  2. Step 2: Convert to fraction form
    564,711.88/779,313.54 = 310,060.84/x
  3. Step 3: Cross multiply
    564,711.88x = 779,313.54 × 310,060.84
  4. Step 4: Simplify right side
    564,711.88x = 241,634,610,835.77
  5. Step 5: Solve for x
    x = 241,634,610,835.77/564,711.88
  6. Step 6: Final answer
    x = 427,890.08

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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.