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Finding the Fourth Proportional to 877,707, 1,211,235.66 and 475,299

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Solution

The fourth proportional to 877,707, 1,211,235.66 and 475,299 is: 655,912.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,707 : 1,211,235.66 = 475,299 : x
  2. Step 2: Convert to fraction form
    877,707/1,211,235.66 = 475,299/x
  3. Step 3: Cross multiply
    877,707x = 1,211,235.66 × 475,299
  4. Step 4: Simplify right side
    877,707x = 575,699,097,962.34
  5. Step 5: Solve for x
    x = 575,699,097,962.34/877,707
  6. Step 6: Final answer
    x = 655,912.62

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1.5x scale

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.