Home / 1,020,431.36-1,408,208.19-561,598.76

Finding the Fourth Proportional to 1,020,431.36, 1,408,208.19 and 561,598.76

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Solution

The fourth proportional to 1,020,431.36, 1,408,208.19 and 561,598.76 is: 775,013.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,431.36 : 1,408,208.19 = 561,598.76 : x
  2. Step 2: Convert to fraction form
    1,020,431.36/1,408,208.19 = 561,598.76/x
  3. Step 3: Cross multiply
    1,020,431.36x = 1,408,208.19 × 561,598.76
  4. Step 4: Simplify right side
    1,020,431.36x = 790,847,973,325.84
  5. Step 5: Solve for x
    x = 790,847,973,325.84/1,020,431.36
  6. Step 6: Final answer
    x = 775,013.40

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Double scale
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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.