Home / 682,547.40-942,102.77-396,159.75

Finding the Fourth Proportional to 682,547.40, 942,102.77 and 396,159.75

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Solution

The fourth proportional to 682,547.40, 942,102.77 and 396,159.75 is: 546,809.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,547.40 : 942,102.77 = 396,159.75 : x
  2. Step 2: Convert to fraction form
    682,547.40/942,102.77 = 396,159.75/x
  3. Step 3: Cross multiply
    682,547.40x = 942,102.77 × 396,159.75
  4. Step 4: Simplify right side
    682,547.40x = 373,223,195,856.71
  5. Step 5: Solve for x
    x = 373,223,195,856.71/682,547.40
  6. Step 6: Final answer
    x = 546,809.20

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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.