Home / 917,343.60-1,376,015.40-637,407.60

Finding the Fourth Proportional to 917,343.60, 1,376,015.40 and 637,407.60

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Solution

The fourth proportional to 917,343.60, 1,376,015.40 and 637,407.60 is: 956,111.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,343.60 : 1,376,015.40 = 637,407.60 : x
  2. Step 2: Convert to fraction form
    917,343.60/1,376,015.40 = 637,407.60/x
  3. Step 3: Cross multiply
    917,343.60x = 1,376,015.40 × 637,407.60
  4. Step 4: Simplify right side
    917,343.60x = 877,082,673,677.04
  5. Step 5: Solve for x
    x = 877,082,673,677.04/917,343.60
  6. Step 6: Final answer
    x = 956,111.40

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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.