Home / 651,130.40-975,529.20-401,520.80

Finding the Fourth Proportional to 651,130.40, 975,529.20 and 401,520.80

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Solution

The fourth proportional to 651,130.40, 975,529.20 and 401,520.80 is: 601,561.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,130.40 : 975,529.20 = 401,520.80 : x
  2. Step 2: Convert to fraction form
    651,130.40/975,529.20 = 401,520.80/x
  3. Step 3: Cross multiply
    651,130.40x = 975,529.20 × 401,520.80
  4. Step 4: Simplify right side
    651,130.40x = 391,695,264,807.36
  5. Step 5: Solve for x
    x = 391,695,264,807.36/651,130.40
  6. Step 6: Final answer
    x = 601,561.94

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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.