Home / 627,830.68-935,831.64-577,442.20

Finding the Fourth Proportional to 627,830.68, 935,831.64 and 577,442.20

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Solution

The fourth proportional to 627,830.68, 935,831.64 and 577,442.20 is: 860,723.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,830.68 : 935,831.64 = 577,442.20 : x
  2. Step 2: Convert to fraction form
    627,830.68/935,831.64 = 577,442.20/x
  3. Step 3: Cross multiply
    627,830.68x = 935,831.64 × 577,442.20
  4. Step 4: Simplify right side
    627,830.68x = 540,388,681,031.21
  5. Step 5: Solve for x
    x = 540,388,681,031.21/627,830.68
  6. Step 6: Final answer
    x = 860,723.60

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.