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Finding the Fourth Proportional to 553,853.94, 830,707.06 and 154,461.26

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Solution

The fourth proportional to 553,853.94, 830,707.06 and 154,461.26 is: 231,671.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,853.94 : 830,707.06 = 154,461.26 : x
  2. Step 2: Convert to fraction form
    553,853.94/830,707.06 = 154,461.26/x
  3. Step 3: Cross multiply
    553,853.94x = 830,707.06 × 154,461.26
  4. Step 4: Simplify right side
    553,853.94x = 128,312,061,158.73
  5. Step 5: Solve for x
    x = 128,312,061,158.73/553,853.94
  6. Step 6: Final answer
    x = 231,671.30

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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.