Home / 877,536.09-1,210,999.86-495,587.43

Finding the Fourth Proportional to 877,536.09, 1,210,999.86 and 495,587.43

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Solution

The fourth proportional to 877,536.09, 1,210,999.86 and 495,587.43 is: 683,910.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,536.09 : 1,210,999.86 = 495,587.43 : x
  2. Step 2: Convert to fraction form
    877,536.09/1,210,999.86 = 495,587.43/x
  3. Step 3: Cross multiply
    877,536.09x = 1,210,999.86 × 495,587.43
  4. Step 4: Simplify right side
    877,536.09x = 600,156,308,347.76
  5. Step 5: Solve for x
    x = 600,156,308,347.76/877,536.09
  6. Step 6: Final answer
    x = 683,910.68

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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.