Home / 989,428.07-1,365,411.17-559,699.04

Finding the Fourth Proportional to 989,428.07, 1,365,411.17 and 559,699.04

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Solution

The fourth proportional to 989,428.07, 1,365,411.17 and 559,699.04 is: 772,384.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,428.07 : 1,365,411.17 = 559,699.04 : x
  2. Step 2: Convert to fraction form
    989,428.07/1,365,411.17 = 559,699.04/x
  3. Step 3: Cross multiply
    989,428.07x = 1,365,411.17 × 559,699.04
  4. Step 4: Simplify right side
    989,428.07x = 764,219,315,626.47
  5. Step 5: Solve for x
    x = 764,219,315,626.47/989,428.07
  6. Step 6: Final answer
    x = 772,384.92

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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.