Home / 657,629.10-986,443.65-618,263.10

Finding the Fourth Proportional to 657,629.10, 986,443.65 and 618,263.10

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Solution

The fourth proportional to 657,629.10, 986,443.65 and 618,263.10 is: 927,394.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,629.10 : 986,443.65 = 618,263.10 : x
  2. Step 2: Convert to fraction form
    657,629.10/986,443.65 = 618,263.10/x
  3. Step 3: Cross multiply
    657,629.10x = 986,443.65 × 618,263.10
  4. Step 4: Simplify right side
    657,629.10x = 609,881,709,024.32
  5. Step 5: Solve for x
    x = 609,881,709,024.32/657,629.10
  6. Step 6: Final answer
    x = 927,394.65

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.