Home / 890,254.20-1,335,381.30-535,085.40

Finding the Fourth Proportional to 890,254.20, 1,335,381.30 and 535,085.40

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Solution

The fourth proportional to 890,254.20, 1,335,381.30 and 535,085.40 is: 802,628.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,254.20 : 1,335,381.30 = 535,085.40 : x
  2. Step 2: Convert to fraction form
    890,254.20/1,335,381.30 = 535,085.40/x
  3. Step 3: Cross multiply
    890,254.20x = 1,335,381.30 × 535,085.40
  4. Step 4: Simplify right side
    890,254.20x = 714,543,037,063.02
  5. Step 5: Solve for x
    x = 714,543,037,063.02/890,254.20
  6. Step 6: Final answer
    x = 802,628.10

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.