Home / 1,038,128.20-1,432,345.80-608,177.20

Finding the Fourth Proportional to 1,038,128.20, 1,432,345.80 and 608,177.20

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Solution

The fourth proportional to 1,038,128.20, 1,432,345.80 and 608,177.20 is: 839,125.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,128.20 : 1,432,345.80 = 608,177.20 : x
  2. Step 2: Convert to fraction form
    1,038,128.20/1,432,345.80 = 608,177.20/x
  3. Step 3: Cross multiply
    1,038,128.20x = 1,432,345.80 × 608,177.20
  4. Step 4: Simplify right side
    1,038,128.20x = 871,120,058,075.76
  5. Step 5: Solve for x
    x = 871,120,058,075.76/1,038,128.20
  6. Step 6: Final answer
    x = 839,125.71

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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.