Home / 1,140,680.16-1,574,172-631,429.92

Finding the Fourth Proportional to 1,140,680.16, 1,574,172 and 631,429.92

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Solution

The fourth proportional to 1,140,680.16, 1,574,172 and 631,429.92 is: 871,391.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,140,680.16 : 1,574,172 = 631,429.92 : x
  2. Step 2: Convert to fraction form
    1,140,680.16/1,574,172 = 631,429.92/x
  3. Step 3: Cross multiply
    1,140,680.16x = 1,574,172 × 631,429.92
  4. Step 4: Simplify right side
    1,140,680.16x = 993,979,300,026.24
  5. Step 5: Solve for x
    x = 993,979,300,026.24/1,140,680.16
  6. Step 6: Final answer
    x = 871,391.77

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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.