Home / 651,862.80-977,794.20-615,121.20

Finding the Fourth Proportional to 651,862.80, 977,794.20 and 615,121.20

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Solution

The fourth proportional to 651,862.80, 977,794.20 and 615,121.20 is: 922,681.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,862.80 : 977,794.20 = 615,121.20 : x
  2. Step 2: Convert to fraction form
    651,862.80/977,794.20 = 615,121.20/x
  3. Step 3: Cross multiply
    651,862.80x = 977,794.20 × 615,121.20
  4. Step 4: Simplify right side
    651,862.80x = 601,461,941,657.04
  5. Step 5: Solve for x
    x = 601,461,941,657.04/651,862.80
  6. Step 6: Final answer
    x = 922,681.80

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Double scale
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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.