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Finding the Fourth Proportional to 545,828.40, 817,187.40 and 530,276.40

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Solution

The fourth proportional to 545,828.40, 817,187.40 and 530,276.40 is: 793,903.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,828.40 : 817,187.40 = 530,276.40 : x
  2. Step 2: Convert to fraction form
    545,828.40/817,187.40 = 530,276.40/x
  3. Step 3: Cross multiply
    545,828.40x = 817,187.40 × 530,276.40
  4. Step 4: Simplify right side
    545,828.40x = 433,335,192,597.36
  5. Step 5: Solve for x
    x = 433,335,192,597.36/545,828.40
  6. Step 6: Final answer
    x = 793,903.71

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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.