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Finding the Fourth Proportional to 623,860,807.40, 937,806,750.30 and 575,487,866.60

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Solution

The fourth proportional to 623,860,807.40, 937,806,750.30 and 575,487,866.60 is: 865,091,058.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,860,807.40 : 937,806,750.30 = 575,487,866.60 : x
  2. Step 2: Convert to fraction form
    623,860,807.40/937,806,750.30 = 575,487,866.60/x
  3. Step 3: Cross multiply
    623,860,807.40x = 937,806,750.30 × 575,487,866.60
  4. Step 4: Simplify right side
    623,860,807.40x = 539,696,406,013,225,920
  5. Step 5: Solve for x
    x = 539,696,406,013,225,920/623,860,807.40
  6. Step 6: Final answer
    x = 865,091,058.15

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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.