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Finding the Fourth Proportional to 700,313.80, 1,050,470.70 and 624,206.20

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Solution

The fourth proportional to 700,313.80, 1,050,470.70 and 624,206.20 is: 936,309.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,313.80 : 1,050,470.70 = 624,206.20 : x
  2. Step 2: Convert to fraction form
    700,313.80/1,050,470.70 = 624,206.20/x
  3. Step 3: Cross multiply
    700,313.80x = 1,050,470.70 × 624,206.20
  4. Step 4: Simplify right side
    700,313.80x = 655,710,323,858.34
  5. Step 5: Solve for x
    x = 655,710,323,858.34/700,313.80
  6. Step 6: Final answer
    x = 936,309.30

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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.