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Finding the Fourth Proportional to 562,461.60, 776,196.49 and 317,497.93

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Solution

The fourth proportional to 562,461.60, 776,196.49 and 317,497.93 is: 438,146.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,461.60 : 776,196.49 = 317,497.93 : x
  2. Step 2: Convert to fraction form
    562,461.60/776,196.49 = 317,497.93/x
  3. Step 3: Cross multiply
    562,461.60x = 776,196.49 × 317,497.93
  4. Step 4: Simplify right side
    562,461.60x = 246,440,778,848.27
  5. Step 5: Solve for x
    x = 246,440,778,848.27/562,461.60
  6. Step 6: Final answer
    x = 438,146.85

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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.