Home / 631,154,474.20-946,731,711.30-355,655,459.80

Finding the Fourth Proportional to 631,154,474.20, 946,731,711.30 and 355,655,459.80

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Solution

The fourth proportional to 631,154,474.20, 946,731,711.30 and 355,655,459.80 is: 533,483,189.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,154,474.20 : 946,731,711.30 = 355,655,459.80 : x
  2. Step 2: Convert to fraction form
    631,154,474.20/946,731,711.30 = 355,655,459.80/x
  3. Step 3: Cross multiply
    631,154,474.20x = 946,731,711.30 × 355,655,459.80
  4. Step 4: Simplify right side
    631,154,474.20x = 336,710,302,089,642,368
  5. Step 5: Solve for x
    x = 336,710,302,089,642,368/631,154,474.20
  6. Step 6: Final answer
    x = 533,483,189.70

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Double scale
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Similar ratio
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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.