Home / 1,038,296.63-1,557,695.59-389,878.12

Finding the Fourth Proportional to 1,038,296.63, 1,557,695.59 and 389,878.12

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Solution

The fourth proportional to 1,038,296.63, 1,557,695.59 and 389,878.12 is: 584,911.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,296.63 : 1,557,695.59 = 389,878.12 : x
  2. Step 2: Convert to fraction form
    1,038,296.63/1,557,695.59 = 389,878.12/x
  3. Step 3: Cross multiply
    1,038,296.63x = 1,557,695.59 × 389,878.12
  4. Step 4: Simplify right side
    1,038,296.63x = 607,311,428,161.49
  5. Step 5: Solve for x
    x = 607,311,428,161.49/1,038,296.63
  6. Step 6: Final answer
    x = 584,911.30

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Double scale
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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.