Home / 830,070.60-1,245,689.10-357,095.40

Finding the Fourth Proportional to 830,070.60, 1,245,689.10 and 357,095.40

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Solution

The fourth proportional to 830,070.60, 1,245,689.10 and 357,095.40 is: 535,893.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,070.60 : 1,245,689.10 = 357,095.40 : x
  2. Step 2: Convert to fraction form
    830,070.60/1,245,689.10 = 357,095.40/x
  3. Step 3: Cross multiply
    830,070.60x = 1,245,689.10 × 357,095.40
  4. Step 4: Simplify right side
    830,070.60x = 444,829,847,440.14
  5. Step 5: Solve for x
    x = 444,829,847,440.14/830,070.60
  6. Step 6: Final answer
    x = 535,893.99

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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.