Home / 899,009.64-1,240,657.56-536,643.72

Finding the Fourth Proportional to 899,009.64, 1,240,657.56 and 536,643.72

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Solution

The fourth proportional to 899,009.64, 1,240,657.56 and 536,643.72 is: 740,582.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,009.64 : 1,240,657.56 = 536,643.72 : x
  2. Step 2: Convert to fraction form
    899,009.64/1,240,657.56 = 536,643.72/x
  3. Step 3: Cross multiply
    899,009.64x = 1,240,657.56 × 536,643.72
  4. Step 4: Simplify right side
    899,009.64x = 665,791,088,244.52
  5. Step 5: Solve for x
    x = 665,791,088,244.52/899,009.64
  6. Step 6: Final answer
    x = 740,582.81

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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.