Home / 947,187.54-1,307,114.01-517,492.26

Finding the Fourth Proportional to 947,187.54, 1,307,114.01 and 517,492.26

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Solution

The fourth proportional to 947,187.54, 1,307,114.01 and 517,492.26 is: 714,136.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,187.54 : 1,307,114.01 = 517,492.26 : x
  2. Step 2: Convert to fraction form
    947,187.54/1,307,114.01 = 517,492.26/x
  3. Step 3: Cross multiply
    947,187.54x = 1,307,114.01 × 517,492.26
  4. Step 4: Simplify right side
    947,187.54x = 676,421,383,112.56
  5. Step 5: Solve for x
    x = 676,421,383,112.56/947,187.54
  6. Step 6: Final answer
    x = 714,136.70

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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.