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Finding the Fourth Proportional to 556,557.60, 768,049.73 and 314,835.01

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Solution

The fourth proportional to 556,557.60, 768,049.73 and 314,835.01 is: 434,472.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,557.60 : 768,049.73 = 314,835.01 : x
  2. Step 2: Convert to fraction form
    556,557.60/768,049.73 = 314,835.01/x
  3. Step 3: Cross multiply
    556,557.60x = 768,049.73 × 314,835.01
  4. Step 4: Simplify right side
    556,557.60x = 241,808,944,425.05
  5. Step 5: Solve for x
    x = 241,808,944,425.05/556,557.60
  6. Step 6: Final answer
    x = 434,472.45

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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.