Home / 1,130,189-1,559,661.45-620,924.18

Finding the Fourth Proportional to 1,130,189, 1,559,661.45 and 620,924.18

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Solution

The fourth proportional to 1,130,189, 1,559,661.45 and 620,924.18 is: 856,875.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,130,189 : 1,559,661.45 = 620,924.18 : x
  2. Step 2: Convert to fraction form
    1,130,189/1,559,661.45 = 620,924.18/x
  3. Step 3: Cross multiply
    1,130,189x = 1,559,661.45 × 620,924.18
  4. Step 4: Simplify right side
    1,130,189x = 968,431,506,918.86
  5. Step 5: Solve for x
    x = 968,431,506,918.86/1,130,189
  6. Step 6: Final answer
    x = 856,875.71

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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.