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Finding the Fourth Proportional to 562,417.56, 776,136.26 and 307,768.76

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Solution

The fourth proportional to 562,417.56, 776,136.26 and 307,768.76 is: 424,720.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,417.56 : 776,136.26 = 307,768.76 : x
  2. Step 2: Convert to fraction form
    562,417.56/776,136.26 = 307,768.76/x
  3. Step 3: Cross multiply
    562,417.56x = 776,136.26 × 307,768.76
  4. Step 4: Simplify right side
    562,417.56x = 238,870,494,331.24
  5. Step 5: Solve for x
    x = 238,870,494,331.24/562,417.56
  6. Step 6: Final answer
    x = 424,720.90

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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.