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Finding the Fourth Proportional to 470,946.61, 706,444.35 and 155,428.12

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Solution

The fourth proportional to 470,946.61, 706,444.35 and 155,428.12 is: 233,150.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,946.61 : 706,444.35 = 155,428.12 : x
  2. Step 2: Convert to fraction form
    470,946.61/706,444.35 = 155,428.12/x
  3. Step 3: Cross multiply
    470,946.61x = 706,444.35 × 155,428.12
  4. Step 4: Simplify right side
    470,946.61x = 109,801,317,205.12
  5. Step 5: Solve for x
    x = 109,801,317,205.12/470,946.61
  6. Step 6: Final answer
    x = 233,150.24

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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.