Home / 927,989.04-1,280,714.76-520,160.16

Finding the Fourth Proportional to 927,989.04, 1,280,714.76 and 520,160.16

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Solution

The fourth proportional to 927,989.04, 1,280,714.76 and 520,160.16 is: 717,871.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,989.04 : 1,280,714.76 = 520,160.16 : x
  2. Step 2: Convert to fraction form
    927,989.04/1,280,714.76 = 520,160.16/x
  3. Step 3: Cross multiply
    927,989.04x = 1,280,714.76 × 520,160.16
  4. Step 4: Simplify right side
    927,989.04x = 666,176,794,475.96
  5. Step 5: Solve for x
    x = 666,176,794,475.96/927,989.04
  6. Step 6: Final answer
    x = 717,871.40

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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.