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Finding the Fourth Proportional to 564,696.08, 779,281.80 and 310,063.40

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Solution

The fourth proportional to 564,696.08, 779,281.80 and 310,063.40 is: 427,888.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,696.08 : 779,281.80 = 310,063.40 : x
  2. Step 2: Convert to fraction form
    564,696.08/779,281.80 = 310,063.40/x
  3. Step 3: Cross multiply
    564,696.08x = 779,281.80 × 310,063.40
  4. Step 4: Simplify right side
    564,696.08x = 241,626,764,466.12
  5. Step 5: Solve for x
    x = 241,626,764,466.12/564,696.08
  6. Step 6: Final answer
    x = 427,888.16

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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.