Home / 912,379.17-1,258,490.07-585,173.90

Finding the Fourth Proportional to 912,379.17, 1,258,490.07 and 585,173.90

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Solution

The fourth proportional to 912,379.17, 1,258,490.07 and 585,173.90 is: 807,159.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,379.17 : 1,258,490.07 = 585,173.90 : x
  2. Step 2: Convert to fraction form
    912,379.17/1,258,490.07 = 585,173.90/x
  3. Step 3: Cross multiply
    912,379.17x = 1,258,490.07 × 585,173.90
  4. Step 4: Simplify right side
    912,379.17x = 736,435,536,080.72
  5. Step 5: Solve for x
    x = 736,435,536,080.72/912,379.17
  6. Step 6: Final answer
    x = 807,159.52

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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.