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Finding the Fourth Proportional to 560,946.14, 774,106.65 and 306,291.90

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Solution

The fourth proportional to 560,946.14, 774,106.65 and 306,291.90 is: 422,683.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,946.14 : 774,106.65 = 306,291.90 : x
  2. Step 2: Convert to fraction form
    560,946.14/774,106.65 = 306,291.90/x
  3. Step 3: Cross multiply
    560,946.14x = 774,106.65 × 306,291.90
  4. Step 4: Simplify right side
    560,946.14x = 237,102,596,631.14
  5. Step 5: Solve for x
    x = 237,102,596,631.14/560,946.14
  6. Step 6: Final answer
    x = 422,683.36

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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.