Home / 714,618.08-985,514.70-485,518.28

Finding the Fourth Proportional to 714,618.08, 985,514.70 and 485,518.28

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Solution

The fourth proportional to 714,618.08, 985,514.70 and 485,518.28 is: 669,568.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,618.08 : 985,514.70 = 485,518.28 : x
  2. Step 2: Convert to fraction form
    714,618.08/985,514.70 = 485,518.28/x
  3. Step 3: Cross multiply
    714,618.08x = 985,514.70 × 485,518.28
  4. Step 4: Simplify right side
    714,618.08x = 478,485,402,058.72
  5. Step 5: Solve for x
    x = 478,485,402,058.72/714,618.08
  6. Step 6: Final answer
    x = 669,568.00

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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.