Home / 708,094.78-977,158.38-385,807.18

Finding the Fourth Proportional to 708,094.78, 977,158.38 and 385,807.18

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Solution

The fourth proportional to 708,094.78, 977,158.38 and 385,807.18 is: 532,407.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,094.78 : 977,158.38 = 385,807.18 : x
  2. Step 2: Convert to fraction form
    708,094.78/977,158.38 = 385,807.18/x
  3. Step 3: Cross multiply
    708,094.78x = 977,158.38 × 385,807.18
  4. Step 4: Simplify right side
    708,094.78x = 376,994,719,001.17
  5. Step 5: Solve for x
    x = 376,994,719,001.17/708,094.78
  6. Step 6: Final answer
    x = 532,407.14

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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.