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Finding the Fourth Proportional to 559,362.04, 771,937.50 and 317,655.16

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Solution

The fourth proportional to 559,362.04, 771,937.50 and 317,655.16 is: 438,374.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,362.04 : 771,937.50 = 317,655.16 : x
  2. Step 2: Convert to fraction form
    559,362.04/771,937.50 = 317,655.16/x
  3. Step 3: Cross multiply
    559,362.04x = 771,937.50 × 317,655.16
  4. Step 4: Simplify right side
    559,362.04x = 245,209,930,072.50
  5. Step 5: Solve for x
    x = 245,209,930,072.50/559,362.04
  6. Step 6: Final answer
    x = 438,374.28

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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.