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Finding the Fourth Proportional to 867,368.16, 1,196,810.64 and 499,788

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Solution

The fourth proportional to 867,368.16, 1,196,810.64 and 499,788 is: 689,616.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,368.16 : 1,196,810.64 = 499,788 : x
  2. Step 2: Convert to fraction form
    867,368.16/1,196,810.64 = 499,788/x
  3. Step 3: Cross multiply
    867,368.16x = 1,196,810.64 × 499,788
  4. Step 4: Simplify right side
    867,368.16x = 598,151,596,144.32
  5. Step 5: Solve for x
    x = 598,151,596,144.32/867,368.16
  6. Step 6: Final answer
    x = 689,616.73

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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.