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Finding the Fourth Proportional to 562,497.53, 776,347.46 and 317,556.77

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Solution

The fourth proportional to 562,497.53, 776,347.46 and 317,556.77 is: 438,285.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,497.53 : 776,347.46 = 317,556.77 : x
  2. Step 2: Convert to fraction form
    562,497.53/776,347.46 = 317,556.77/x
  3. Step 3: Cross multiply
    562,497.53x = 776,347.46 × 317,556.77
  4. Step 4: Simplify right side
    562,497.53x = 246,534,386,325.78
  5. Step 5: Solve for x
    x = 246,534,386,325.78/562,497.53
  6. Step 6: Final answer
    x = 438,285.28

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Double scale
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Similar ratio
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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.