Home / 1,178,534.90-1,767,802.35-430,483.70

Finding the Fourth Proportional to 1,178,534.90, 1,767,802.35 and 430,483.70

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Solution

The fourth proportional to 1,178,534.90, 1,767,802.35 and 430,483.70 is: 645,725.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,178,534.90 : 1,767,802.35 = 430,483.70 : x
  2. Step 2: Convert to fraction form
    1,178,534.90/1,767,802.35 = 430,483.70/x
  3. Step 3: Cross multiply
    1,178,534.90x = 1,767,802.35 × 430,483.70
  4. Step 4: Simplify right side
    1,178,534.90x = 761,010,096,496.70
  5. Step 5: Solve for x
    x = 761,010,096,496.70/1,178,534.90
  6. Step 6: Final answer
    x = 645,725.55

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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.