Home / 719,089,970.10-992,061,811.53-417,623,963.28

Finding the Fourth Proportional to 719,089,970.10, 992,061,811.53 and 417,623,963.28

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Solution

The fourth proportional to 719,089,970.10, 992,061,811.53 and 417,623,963.28 is: 576,157,091.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,089,970.10 : 992,061,811.53 = 417,623,963.28 : x
  2. Step 2: Convert to fraction form
    719,089,970.10/992,061,811.53 = 417,623,963.28/x
  3. Step 3: Cross multiply
    719,089,970.10x = 992,061,811.53 × 417,623,963.28
  4. Step 4: Simplify right side
    719,089,970.10x = 414,308,785,549,894,976
  5. Step 5: Solve for x
    x = 414,308,785,549,894,976/719,089,970.10
  6. Step 6: Final answer
    x = 576,157,091.29

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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.