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Finding the Fourth Proportional to 558,370.74, 770,688.48 and 316,794.72

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Solution

The fourth proportional to 558,370.74, 770,688.48 and 316,794.72 is: 437,254.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,370.74 : 770,688.48 = 316,794.72 : x
  2. Step 2: Convert to fraction form
    558,370.74/770,688.48 = 316,794.72/x
  3. Step 3: Cross multiply
    558,370.74x = 770,688.48 × 316,794.72
  4. Step 4: Simplify right side
    558,370.74x = 244,150,041,228.83
  5. Step 5: Solve for x
    x = 244,150,041,228.83/558,370.74
  6. Step 6: Final answer
    x = 437,254.36

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Double scale
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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.