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Finding the Fourth Proportional to 626,740.98, 864,045.65 and 430,501.47

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Solution

The fourth proportional to 626,740.98, 864,045.65 and 430,501.47 is: 593,503.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,740.98 : 864,045.65 = 430,501.47 : x
  2. Step 2: Convert to fraction form
    626,740.98/864,045.65 = 430,501.47/x
  3. Step 3: Cross multiply
    626,740.98x = 864,045.65 × 430,501.47
  4. Step 4: Simplify right side
    626,740.98x = 371,972,920,319.60
  5. Step 5: Solve for x
    x = 371,972,920,319.60/626,740.98
  6. Step 6: Final answer
    x = 593,503.43

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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.