Home / 921,885.57-1,272,285.63-559,401.26

Finding the Fourth Proportional to 921,885.57, 1,272,285.63 and 559,401.26

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Solution

The fourth proportional to 921,885.57, 1,272,285.63 and 559,401.26 is: 772,024.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,885.57 : 1,272,285.63 = 559,401.26 : x
  2. Step 2: Convert to fraction form
    921,885.57/1,272,285.63 = 559,401.26/x
  3. Step 3: Cross multiply
    921,885.57x = 1,272,285.63 × 559,401.26
  4. Step 4: Simplify right side
    921,885.57x = 711,718,178,140.47
  5. Step 5: Solve for x
    x = 711,718,178,140.47/921,885.57
  6. Step 6: Final answer
    x = 772,024.43

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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.