Home / 1,292,117.32-1,938,023.34-345,561.40

Finding the Fourth Proportional to 1,292,117.32, 1,938,023.34 and 345,561.40

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Solution

The fourth proportional to 1,292,117.32, 1,938,023.34 and 345,561.40 is: 518,301.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,117.32 : 1,938,023.34 = 345,561.40 : x
  2. Step 2: Convert to fraction form
    1,292,117.32/1,938,023.34 = 345,561.40/x
  3. Step 3: Cross multiply
    1,292,117.32x = 1,938,023.34 × 345,561.40
  4. Step 4: Simplify right side
    1,292,117.32x = 669,706,058,603.08
  5. Step 5: Solve for x
    x = 669,706,058,603.08/1,292,117.32
  6. Step 6: Final answer
    x = 518,301.28

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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.