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Finding the Fourth Proportional to 984,778.90, 1,475,240.14 and 877,666.93

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Solution

The fourth proportional to 984,778.90, 1,475,240.14 and 877,666.93 is: 1,314,781.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    984,778.90 : 1,475,240.14 = 877,666.93 : x
  2. Step 2: Convert to fraction form
    984,778.90/1,475,240.14 = 877,666.93/x
  3. Step 3: Cross multiply
    984,778.90x = 1,475,240.14 × 877,666.93
  4. Step 4: Simplify right side
    984,778.90x = 1,294,769,482,095.55
  5. Step 5: Solve for x
    x = 1,294,769,482,095.55/984,778.90
  6. Step 6: Final answer
    x = 1,314,781.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.