Home / 291,159.23-402,018.66-286,509.15

Finding the Fourth Proportional to 291,159.23, 402,018.66 and 286,509.15

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Solution

The fourth proportional to 291,159.23, 402,018.66 and 286,509.15 is: 395,598.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,159.23 : 402,018.66 = 286,509.15 : x
  2. Step 2: Convert to fraction form
    291,159.23/402,018.66 = 286,509.15/x
  3. Step 3: Cross multiply
    291,159.23x = 402,018.66 × 286,509.15
  4. Step 4: Simplify right side
    291,159.23x = 115,182,024,560.74
  5. Step 5: Solve for x
    x = 115,182,024,560.74/291,159.23
  6. Step 6: Final answer
    x = 395,598.06

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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.