Home / 780,347.28-1,076,966.67-440,837.40

Finding the Fourth Proportional to 780,347.28, 1,076,966.67 and 440,837.40

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Solution

The fourth proportional to 780,347.28, 1,076,966.67 and 440,837.40 is: 608,405.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,347.28 : 1,076,966.67 = 440,837.40 : x
  2. Step 2: Convert to fraction form
    780,347.28/1,076,966.67 = 440,837.40/x
  3. Step 3: Cross multiply
    780,347.28x = 1,076,966.67 × 440,837.40
  4. Step 4: Simplify right side
    780,347.28x = 474,767,186,689.46
  5. Step 5: Solve for x
    x = 474,767,186,689.46/780,347.28
  6. Step 6: Final answer
    x = 608,405.00

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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.