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Finding the Fourth Proportional to 562,532.77, 776,297.27 and 304,409.69

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Solution

The fourth proportional to 562,532.77, 776,297.27 and 304,409.69 is: 420,086.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,532.77 : 776,297.27 = 304,409.69 : x
  2. Step 2: Convert to fraction form
    562,532.77/776,297.27 = 304,409.69/x
  3. Step 3: Cross multiply
    562,532.77x = 776,297.27 × 304,409.69
  4. Step 4: Simplify right side
    562,532.77x = 236,312,409,386.89
  5. Step 5: Solve for x
    x = 236,312,409,386.89/562,532.77
  6. Step 6: Final answer
    x = 420,086.48

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Half scale
Find fourth proportional to 1,125,065.53, 1,552,594.53 and 608,819.38
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.