Home / 1,187,690.40-1,781,362.80-346,154.40

Finding the Fourth Proportional to 1,187,690.40, 1,781,362.80 and 346,154.40

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Solution

The fourth proportional to 1,187,690.40, 1,781,362.80 and 346,154.40 is: 519,181.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,690.40 : 1,781,362.80 = 346,154.40 : x
  2. Step 2: Convert to fraction form
    1,187,690.40/1,781,362.80 = 346,154.40/x
  3. Step 3: Cross multiply
    1,187,690.40x = 1,781,362.80 × 346,154.40
  4. Step 4: Simplify right side
    1,187,690.40x = 616,626,571,216.32
  5. Step 5: Solve for x
    x = 616,626,571,216.32/1,187,690.40
  6. Step 6: Final answer
    x = 519,181.24

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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.