Home / 651,916.80-977,875.20-615,175.20

Finding the Fourth Proportional to 651,916.80, 977,875.20 and 615,175.20

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Solution

The fourth proportional to 651,916.80, 977,875.20 and 615,175.20 is: 922,762.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,916.80 : 977,875.20 = 615,175.20 : x
  2. Step 2: Convert to fraction form
    651,916.80/977,875.20 = 615,175.20/x
  3. Step 3: Cross multiply
    651,916.80x = 977,875.20 × 615,175.20
  4. Step 4: Simplify right side
    651,916.80x = 601,564,571,735.04
  5. Step 5: Solve for x
    x = 601,564,571,735.04/651,916.80
  6. Step 6: Final answer
    x = 922,762.80

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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.