Home / 651,151.80-898,637.04-393,092.19

Finding the Fourth Proportional to 651,151.80, 898,637.04 and 393,092.19

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Solution

The fourth proportional to 651,151.80, 898,637.04 and 393,092.19 is: 542,495.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,151.80 : 898,637.04 = 393,092.19 : x
  2. Step 2: Convert to fraction form
    651,151.80/898,637.04 = 393,092.19/x
  3. Step 3: Cross multiply
    651,151.80x = 898,637.04 × 393,092.19
  4. Step 4: Simplify right side
    651,151.80x = 353,247,202,068.72
  5. Step 5: Solve for x
    x = 353,247,202,068.72/651,151.80
  6. Step 6: Final answer
    x = 542,495.93

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Double scale
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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.