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Finding the Fourth Proportional to 569,957,668.92, 786,475,227.78 and 319,075,798.68

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Solution

The fourth proportional to 569,957,668.92, 786,475,227.78 and 319,075,798.68 is: 440,287,454.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,957,668.92 : 786,475,227.78 = 319,075,798.68 : x
  2. Step 2: Convert to fraction form
    569,957,668.92/786,475,227.78 = 319,075,798.68/x
  3. Step 3: Cross multiply
    569,957,668.92x = 786,475,227.78 × 319,075,798.68
  4. Step 4: Simplify right side
    569,957,668.92x = 250,945,211,445,938,432
  5. Step 5: Solve for x
    x = 250,945,211,445,938,432/569,957,668.92
  6. Step 6: Final answer
    x = 440,287,454.89

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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.