Home / 778,808.40-1,074,710.75-434,617.34

Finding the Fourth Proportional to 778,808.40, 1,074,710.75 and 434,617.34

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Solution

The fourth proportional to 778,808.40, 1,074,710.75 and 434,617.34 is: 599,746.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,808.40 : 1,074,710.75 = 434,617.34 : x
  2. Step 2: Convert to fraction form
    778,808.40/1,074,710.75 = 434,617.34/x
  3. Step 3: Cross multiply
    778,808.40x = 1,074,710.75 × 434,617.34
  4. Step 4: Simplify right side
    778,808.40x = 467,087,919,887.77
  5. Step 5: Solve for x
    x = 467,087,919,887.77/778,808.40
  6. Step 6: Final answer
    x = 599,746.90

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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.