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Finding the Fourth Proportional to 553,637.70, 830,161.26 and 286,736.22

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Solution

The fourth proportional to 553,637.70, 830,161.26 and 286,736.22 is: 429,951.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,637.70 : 830,161.26 = 286,736.22 : x
  2. Step 2: Convert to fraction form
    553,637.70/830,161.26 = 286,736.22/x
  3. Step 3: Cross multiply
    553,637.70x = 830,161.26 × 286,736.22
  4. Step 4: Simplify right side
    553,637.70x = 238,037,301,682.84
  5. Step 5: Solve for x
    x = 238,037,301,682.84/553,637.70
  6. Step 6: Final answer
    x = 429,951.40

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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.