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Finding the Fourth Proportional to 611,081.28, 840,301.04 and 530,368.24

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Solution

The fourth proportional to 611,081.28, 840,301.04 and 530,368.24 is: 729,312.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,081.28 : 840,301.04 = 530,368.24 : x
  2. Step 2: Convert to fraction form
    611,081.28/840,301.04 = 530,368.24/x
  3. Step 3: Cross multiply
    611,081.28x = 840,301.04 × 530,368.24
  4. Step 4: Simplify right side
    611,081.28x = 445,668,983,654.97
  5. Step 5: Solve for x
    x = 445,668,983,654.97/611,081.28
  6. Step 6: Final answer
    x = 729,312.12

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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.