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Finding the Fourth Proportional to 553,307.63, 829,956.78 and 153,947.25

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Solution

The fourth proportional to 553,307.63, 829,956.78 and 153,947.25 is: 230,919.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,307.63 : 829,956.78 = 153,947.25 : x
  2. Step 2: Convert to fraction form
    553,307.63/829,956.78 = 153,947.25/x
  3. Step 3: Cross multiply
    553,307.63x = 829,956.78 × 153,947.25
  4. Step 4: Simplify right side
    553,307.63x = 127,769,563,899.86
  5. Step 5: Solve for x
    x = 127,769,563,899.86/553,307.63
  6. Step 6: Final answer
    x = 230,919.58

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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.